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Aerial view of a rugged kelp coastline — dark kelp forest canopies visible below clear turquoise water along rocky headlands

The Coastal Atlas

A field guide to the kelp coastlines of the world.

Kelp forests ring the temperate ocean — a necklace of green from the Aleutians to Tasmania, Brittany to the Humboldt. The atlas charts them coast by coast: the ecology, the seasons, the wildlife and how to see it for yourself.

Stylised world map marking the approximate locations of 257 Coastal Atlas guidesAleutian Islands — Otters, urchins and the far-western arc of bull kelpHaida Gwaii — Kelp forests at the edge of the continentVancouver Island — The wild west coast — swell, wolves and kelpOlympic Coast — Washington’s wilderness kelp below the Olympic rainforestPoint Reyes — Where the upwelling engine feeds a forestMendocino Coast — Life — and loss — on California’s bull kelp frontierMonterey Bay — The submarine canyon that feeds kelp, otters and whalesChannel Islands — California’s kelp forest crown jewelsCatalina Island — Clear water, garibaldi and a living kelp laboratoryBaja California — The warm-water southern frontier of giant kelpKangaroo Island — Kelp, seadragons and serious southern swellGreat Southern Reef — Australia’s forgotten kelp continentTasmania, east coast — The front line of southern-hemisphere kelp lossTasmanian giant kelp — What happened to the vanishing forests — and what’s being doneMaria Island — Tasmania’s island kelp sanctuaryJervis Bay — Kelp, seagrass and famously white sandMornington Peninsula — Melbourne’s kelp — dragons, piers and the HeadsStewart Island / Rakiura — New Zealand’s southernmost kelp strongholdHokkaido — Kombu grades, kelp roads and the Shiretoko wildsSanriku Coast — Ria-coast kelp, recovery and resilience after the tsunamiLofoten — Kelp forests under the northern lightsWest Scotland — Oarweed forests among the HebridesBrittany — Europe’s largest kelp forests — and its seaweed harvestRías of Galicia — Where kelp meets the harvest — and the mussel raftsCape Peninsula — Kelp at the edge of Africa, in two oceans at onceChile, Humboldt coast — The world’s richest kelp frontier, run by fishersStrait of Magellan — Subantarctic kelp at the end of the worldFalkland Islands — Mind-bending kelp beds that feed the Southern OceanSitka Sound — Herring, kelp and cultures beneath Mount EdgecumbePuget Sound — Bull kelp in the inland sea, at a city doorstepHood Canal — A natural fjord of octopus dens, wolf eels and breathless depthsSonoma Coast — Abalone country, after the bull kelpCasino Point — A kelp cathedral in a protected underwater parkFortescue Bay — Tasmania’s deep kelp gardens on the Tasman PeninsulaWellington south coast — Kelp at the capital’s doorstep, inside a marine reserveFiordland — Kelp beneath the mountains; black coral in the shallowsIse-Shima — Kelp gardens and the ama divers of JapanShakotan Peninsula — Hokkaido’s blue-water kelp coastInner Hebrides — Sea lochs, otters and kelp on Mull and SkyeFalse Bay, Cape — Snorkelling the Cape kelp beside a penguin colonyGarden Route — South Africa’s sunny kelp coastParacas, Peru — Kelp and anchoveta where desert meets upwellingGulf of Maine — Kelp meeting one of the fastest-warming seas on EarthNova Scotia — Kelp beds of the North Atlantic lobster coastNewfoundland & Labrador — Cold-water kelp and old cod grounds on Canada’s far eastVancouver Island — Sea otters, bull kelp and First Nations stewardshipOregon Coast — Bull kelp holding on at the upwelling edgeBass Strait — The rough water between two seas — kelp on the island reefsOtago — New Zealand’s southern swell forestsFiordland fiords — Cold-water diving beneath the rain-shadowed peaksBrittany — Europe’s great laminaria bedsOrkney & Shetland — Kelp at Britain’s northern rimNorway, taretrawling coast — How industrial kelp harvest shaped a nation’s coastNorway, mid-coast — Trondheim to the tangle kelp frontierSouth Africa — Where two oceans grow one forestSaldanha & Langebaan — South Africa’s quiet west-coast kelpSkeleton Coast, Namibia — Kelp at the desert’s edge on the Skeleton CoastMonterey Breakwater — The easy kelp forest shore dive, step by stepCornwall — Britain’s Celtic edge — seals, spring blooms and golden kelpShetland Islands — Otters, wrecks and clear Atlantic water at 60° NorthSenja, Arctic Norway — Kelp forests where mountains dive into the Barents SeaLoch Carron, Scotland — Maerl beds and kelp mazes in a sheltered Highland sea lochMilford Sound, Fiordland — A kelp forest that never sees the sun — under a freshwater ceilingOtago Peninsula — Royal albatross overhead, bull kelp and sea lions belowRickett’s Point, Melbourne — Melbourne’s pocket marine sanctuary of the Great Southern ReefCape Point, Cape Town — Two-ocean kelp diving among sharks and granite coresSydney — The crayweed comeback on the city coastKamchatka — Kelp forests on the Pacific’s wild far shoreIceland — Kelp forests where warm and Arctic currents collideFaroe Islands — Kelp in one of the world’s strongest tidal landscapesHelgoland — Germany’s only kelp island — and a century of marine recordsGreenland, southwest coast — The kelp frontier — forests expanding in a warming ArcticHudson Bay — Churchill coast — Sugar kelp under half a year of sea ice, belugas in the estuarySvalbard — Kelp in polar light — the High Arctic’s underwater forestsBanks Peninsula — Drowned-volcano harbours, kelp and Hector’s dolphinsCook Strait — Kelp in the torn narrows between two islandsChatham Islands — Bull kelp forests alone in the roaring fortiesSnares & Antipodes — New Zealand’s most remote kelp wildernessAmakusa, Kyushu — Nori and wakame craft on Kyushu’s island fringeBay of Fundy — Kelp and rockweed under the highest tides on EarthGulf of St Lawrence — Green kelp under the Magdalen tidesMagdalen Islands — Red sandstone, seals and kelp in the island gulfHakai Passage — Cold green water, sea otters and a living kelp laboratoryIreland, west coast — Storm kelp and harvest memory on the Wild Atlantic WayIsle of Man — An island-scale kelp census in the Irish SeaPortugal — The southern edge of the European kelp rangeLundy Island — England’s original marine reserve and its kelp wallsWhite Sea — Kelp forests under ice in a sheltered Arctic seaBruny Island — Tasmania’s southern kelp garden at the bottom of the mapWilsons Promontory — granite reefs and kelp forests at mainland Australia’s southern tipPortsea Pier — A shallow weedy-seadragon shore dive under a working timber pier at the edge of the HeadsRapid Bay Jetty — Leafy seadragons under twin jetties on the Fleurieu PeninsulaMontague Island — Australia’s fur-seal snorkel capital on kelp-fringed granite off NaroomaHead of Bight — Whales above the cliffs, kelp at their feetLeeuwin Capes — Kelp at the warm edge where the Leeuwin Current beginsPort Phillip Bay — Melbourne’s sheltered kelp and seadragon city gardenEsperance & the Recherche — Granite islands, white sand and golden kelpSydney, crayweed coast — The city that planted its forest backGough Island — World Heritage kelp beds at the world’s loneliest weather stationKerguelen Islands — Giant kelp in one of Earth’s most remote archipelagosTristan da Cunha — Kelp ringing the remotest inhabited island on EarthPrince William Sound — Kelp recovery in Alaska’s great fjorded seaKodiak Archipelago — Bears above, kelp below on Alaska’s emerald coastWhytecliff Park, Vancouver — Vancouver’s front-yard kelp wall, an easy shore diveDeception Pass, Washington — Current, wharf piles and bull kelp in the narrowsPoint Lobos, Monterey — The reserved slot at California’s crown-jewel cove diveMacquarie Island — Subantarctic giant kelp on a celebrated recovery storyBicheno, Tasmania — Tasmania’s quiet red-rock reef — sponges, kelp and clear waterKapiti Island — A marine reserve inside Wellington’s wild weatherPoor Knights Islands — Golden kelp in clear subtropical water at the boundary currentNorthland — Where New Zealand’s warm and cold currents meet — kelp, kina and the recovery lessonAuckland & Campbell Islands — The kelp kingdom nobody visits — New Zealand’s subantarctic wildsKorea, East Sea coast — Ecklonia cava forests and the haenyeo of the east coastJeju Island — The haenyeo coast and Korea’s living seaweed cultureKuril Islands — Kelp forests on the Pacific’s fiercest volcanic arcTaiwan, northeast coast — Kelp, Longdong’s dive reefs and the Kuroshio edgeMoray Firth — Dolphins, salmon and kelp on Scotland’s northeast shoulderPembrokeshire — Kelp, islands and tidal races on the Welsh frontierIsles of Scilly — Kelp, seals and clear Atlantic water off England’s far westChannel Islands, UK — Kelp at the warm edge of the English Channel rangeChiloé Island — Kelp, salmon country and the working coast of southern ChileChilean Patagonian channels — Kelp inside Chile’s drowned Andes — fjords, corals and whalesBeagle Channel — Kelp where Darwin first saw the forestSouth Georgia — Giant kelp at the edge of the iceGreat Bear Rainforest — Kelp forests beneath the world’s largest intact temperate rainforestHowe Sound — Vancouver’s fjord — glass sponges and recovering kelpBarkley Sound — Broken islands, kelp and a living laboratoryGerstle Cove, Salt Point — Sonoma’s reserve cove — abalone country turned sanctuaryPoint Loma, San Diego — One of the world’s great giant kelp forests at a city’s edgeGoat Island, Leigh — New Zealand’s first marine reserve and its easy kelp snorkelFoveaux Strait — Oyster grounds and bull kelp in New Zealand’s torn southern straitMurmansk coast — Arctic kelp where the Gulf Stream finally runs out of heatBohuslän, Sweden — Granite skerries and kelp on Sweden’s west coastBornholm — The Baltic’s last real kelp, clinging to a granite islandDevon — Kelp along England’s southwest peninsulaIroise Sea, Finistère — France’s great kelp reserve at the corner of BrittanyCantabria, Spain — Kelp at the southern edge of its European rangeAzores — Deep golden kelp gardens on mid-Atlantic volcanoesAzores — Volcanic shores holding the Atlantic’s oceanic kelp frontierRhode Island — Kelp on New England’s warm southern edgeCape Ann — Granite ledges and cold-water kelp on Boston’s doorstepGaspé Peninsula — Cold clear kelp water at the mouth of the St LawrencePenínsula Valdés — Kelp, whales and orcas on Argentina’s Patagonian shoreGulf of San Matías — Patagonia’s sea within a sea — giant kelp, scallops and seven-metre tidesCrozet Islands — Giant kelp wrapping the subantarctic’s loneliest archipelagoAmsterdam Island — A narrow giant-kelp ring on one of Earth’s most isolated specks of landThe Snares / Tini Heke — Storm-built bull kelp and endemic penguins on granite you may not touchTristan da Cunha — Giant kelp ringing the most remote inhabited archipelago on EarthPrince Edward Islands — Kelp, albatross and seals in the roaring fortiesGulf St Vincent — Adelaide’s shallow inverse-estuary sea of kelp and seadragonsAlgoa Bay — Where the great Cape kelp forest reaches its eastern limitAnglesey — Kelp, tidal races and bird islands off North WalesBig Sur — Giant kelp clinging to California’s steepest coastlineCape Breton Island — Kelp where the Gulf meets the open AtlanticThe Catlins — Bull kelp on New Zealand’s forgotten southern coastSecond Valley, SA — Shore-diving leafy seadragon country on the FleurieuCounty Donegal — Storm kelp on Ireland’s wild northwest cornerDorset, Jurassic Coast — Kelp ledges beneath England’s fossil cliffsFirth of Clyde — A grand sea on Scotland’s west coast, slowly recoveringNorthern Gulf of California — Kelp holding its warm-water edge in the Sea of CortezHeard & McDonald Islands — Kelp in the shadow of an active subantarctic volcanoIzu Peninsula — Japan’s warm kelp coast within reach of TokyoKing George Sound, Albany — A sheltered kelp jewel on Western Australia’s south coastLabrador — The subarctic kelp coast almost nobody seesMarion Island — Kelp, mice and albatross in the roaring fortiesMarlborough Sounds — Kelp in the drowned valleys at the top of the South IslandCotentin Peninsula — Normandy’s tidal kelp races at the corner of the ChannelNoto Peninsula — Home of satoumi, Japan’s art of coastal stewardshipOuter Hebrides — Tangle kelp on Scotland’s Atlantic frontierSado Island — Kelp, tub boats and the gold-mining coastYellow Sea (Shandong) — The farming heartland where kelp feeds a nationAzores — Volcanic reefs and kelp at the Atlantic’s midpointCanary Islands — Kelp forests on the edge of the SaharaCook Inlet, Alaska — Kelp beds in the land of bore tides and glacial siltGulf of Alaska — A thousand leagues of wild kelp shoreThe Kattegat — Kelp forests holding on in brackish waterKermadec Islands — Where New Zealand’s kelp reaches toward the tropicsLüderitz, Namibia — Benguela kelp growing against a desert shoreNewfoundland, east coast — Kelp and cold water in Iceberg AlleyRías Baixas, Galicia — Kelp, harvesters and the Galician tideSan Juan Islands — Bull kelp in the Salish Sea’s racing channelsHoutman Abrolhos — Where kelp and coral share the same reefDalmatian Coast — Cystoseira forests on the drowned karst of CroatiaEden, Twofold Bay — Kelp, whales and whaling history on the Sapphire CoastBoston Harbor Islands — Rockweed shores and kelp minutes from downtown BostonCape Arago, Oregon — Tidepools and bull kelp on Oregon’s rugged headlandFalkland kelp belt — Kelp so dense it damps the wavesKaikōura — Kelp, canyon currents and whales on one coastCalifornia’s Lost Coast — Roadless kelp wilderness under the King RangeCascais coast — Kelp on Lisbon’s rocky doorstepSaltstraumen — Kelp in the world’s strongest tidal currentShetland Islands — Britain’s far-north kelp, otters and sea cavesSicily — Where canopy Cystoseira still rules the rocksAsturias — Green Spain’s kelp cliffs and cider-coast reefsThe Baltic coasts — Bladderwrack meadow seas at the edge of salinityBasque Coast — Kelp ledges and fishing ports between Geopark cliffsEast Lothian — Kelp, castles and fulmars on Scotland’s southeast shoreGalápagos — A kelp forest rediscovered at the equatorIsle of Man (flora) — Species by species through the Manx tide racesScottish sea lochs — Sheltered kelp down the long, still lochsShikoku — Kelp brooms and a warm current on Shikoku’s Pacific shoreStrait of Juan de Fuca — Bull kelp standing in the gateway to the Salish SeaSydney platforms — Sandstone platforms striped with seaweedWestfjords, Iceland — Iceland’s kelp wilderness of seals and eiderSeto Inland Sea — Seaweed gardens inside Japan’s island seaBantry Bay, West Cork — Kelp forest in a drowned valley — and Ireland’s great harvest battleBasque surf coast — Swell, flysch and the kelp beneath the surf breaksBrowns Bank — An offshore kelp bank science has watched for fifty yearsCorsica — Cystoseira canopy, Posidonia meadows and the Med’s deep-water kelpZhoushan archipelago — A legendary fishing ground where the Yangtze meets the seaEsperance, remote east — Expedition kelp beyond the postcards — Cape Arid to Israelite BayBahía Magdalena — A gray-whale lagoon with kelp holding the outside shoreMagdalena Bay — Standing on the cold–warm seam of kelp’s southern worldIsla Guadalupe — White sharks, fur seals and kelp at the southern edgePribilof Islands — Fur seals, seabird cities and shelf-edge kelp far at seaCommander Islands — Fog-bound kelp wilds at the Aleutian arc’s western endAcadia coast, Maine — Rockweed shores and cold kelp ledges beneath Acadia’s graniteArraial do Cabo, Brazil — Deep, upwelled kelp growing where kelp should not beGreat Barrier Island — Auckland’s wild outer-gulf island of kelp reefs and dark skyPortland–Discovery Bay — Golden kelp in heavy swell on Victoria’s far westWestern Port — Mangroves, mudflats and kelp in Melbourne’s quiet second bayAlaska Peninsula — An 800-km volcanic finger splitting two seas, fringed in kelpPhillip Island — Little penguins above, golden kelp forests belowBlack Sea coast — No true kelp — but ancient Cystoseira forests on brackish reefsSardinia — The Mediterranean’s Cystoseira canopy at its most beautifulNorthumberland coast — Castles on crags, eider ducks and kelp along England’s empty northeastBay of Plenty — Warm-current kelp at its subtropical limit, with volcanic islands offshoreCoromandel Peninsula — Golden kelp, snapper nurseries and the Cathedral Cove marine reserveDerwent Estuary — Kelp restoration in Hobart’s front yard — an industrial estuary healingPort Stephens — The northern hinge of the Great Southern Reef — kelp beside sponge gardensSulu Archipelago — Eucheumatoid seaweed farms staked across Coral Triangle shallowsMontenegro coast — Cystoseira forests beneath the drowned canyon of the Bay of KotorAlbanian Riviera — Karst reefs and algal forests on the Mediterranean’s least-studied coastChonos Archipelago — Chile’s drowned coastal range — kelp channels beside mussel farms and whalesArraial do Cabo — a wind-driven upwelling that parks cold, nutrient-rich water on Brazil’s warm coastBahía de Concepción — Humboldt-fed kelp beds beside Chile’s industrial coast and artisanal dive fisheriesEnsenada — giant kelp at its warm southern range edge, off Bahía de Todos SantosSt Helena Bay — The upwelling heart of the West Coast kelp fringeAbel Tasman / Golden Bay — Split-apple granite, golden-sand anchorages and fern-hung kelp coastAntarctic Peninsula — Seaweed forests clinging to the frozen edge of the kelp worldBig Sur — Vertical cliffs, deep kelp and the steepest shelf in CaliforniaLa Jolla — Kelp canopy growing above the twin submarine canyonsMalibu coast — Historic Hollywood kelp beds, restored beside the cityWest coast, Vancouver Island — Surf-beaten outer coast of glassy swells, canyons and bull kelpBarkley Sound & Bamfield — Broken Group islands, tongue of ocean swell and a century of marine scienceStrait of Georgia — The Salish Sea’s deep central basin between island and mainland mountainsKachemak Bay — Tide-raced Alaskan bay of bull kelp at the end of the roadResurrection Bay — A glacial fjord of kelp walls within easy reach of AnchorageSt Abbs–Eyemouth — Britain’s celebrated marine reserve — kelp walls in East Coast swellAleutian Islands — The wildest, loneliest kelp arc on EarthAnacapa Island — Compact kelp gardens in lee and surge, close to a million peopleBodega Head — A granitic hammerhead of bull kelp and marine-lab memoryCarmel Bay — Four decades of protection under the cypressesClayoquot Sound — Kelp beds at the feet of the ancient rainforestGlacier Bay — New kelp forests colonising the wake of retreating icePoint Lobos — The crown-jewel reserve of American kelp divingPoint Reyes — Wind, fog and upwelling at a continental corner

Stylised position plot, not to scale — each dot is a coastline guide in the atlas below.

The Northeast Pacific

From the Aleutians to Baja — the longest temperate kelp coastline on Earth, watched by otters and tested by heatwaves.

59 guides · View region →

Australia & the Great Southern Reef

Eight thousand kilometres of temperate reef that most Australians have never heard of — golden kelp, seadragons and lobsters.

35 guides · View region →

New Zealand

Aotearoa’s southern kelp — bull kelp surf zones, kina barrens and fiords where the forest meets the mountains.

22 guides · View region →

East Asia

The kombu coasts — Hokkaido and the Sanriku ria, where kelp has been food, trade and identity for centuries.

19 guides · View region →

Europe

From Arctic Lofoten to Galicia’s rias — oarweed, tangle and sugar kelp on the continent’s wild western edges.

58 guides · View region →

The Northwest Atlantic

New England, the Maritimes and Newfoundland — one of the fastest-warming seas on Earth, where kelp’s fortunes are shifting in real time.

15 guides · View region →

The North Atlantic & Arctic

Faroes, Iceland, Greenland and Svalbard — the cold green border where kelp forests meet tide races, glaciers and the polar night.

9 guides · View region →

Southern Africa

Where two oceans meet — sea bamboo forests patrolled by sharks, otters and freedivers off the Cape.

10 guides · View region →

South America

The Humboldt frontier — upwelling so rich it grows kelp almost to the Atacama.

11 guides · View region →

Patagonia & the Southern Ocean

The roaring latitudes — subantarctic kelp that rafts life across entire ocean basins.

19 guides · View region →

Know a kelp coastline we should chart?

The atlas expands with every field season. Tell us about your home coast — or start a restoration program on it.