
Ha Long Bay – Cat Ba Archipelago
Gulf of Tonkin · northern Viet Nam
Limestone towers rise from the sea across a coastal landscape that UNESCO recognises for its scenery and geology.
The Tide List · considered directory
A curated route to makers, places, restaurants, experiences, laboratories, networks and resources connected with the ocean-shaped world.
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Showing 1–12 of 194 matching listings. Inclusion is informational—not a ranking, certification or guarantee.

Gulf of Tonkin · northern Viet Nam
Limestone towers rise from the sea across a coastal landscape that UNESCO recognises for its scenery and geology.

Pacific coast · Baja California Peninsula
Laguna Ojo de Liebre and Laguna San Ignacio form a World Heritage sanctuary centred on coastal lagoons used by grey whales.

Corsica · Mediterranean Sea
The Scandola peninsula and adjoining Gulf of Porto landscape bring dramatic rock formations together with coastal birdlife and marine habitat.

Gulf of Bothnia · Baltic Sea
On opposite sides of the Gulf of Bothnia, Sweden's High Coast and Finland's Kvarken Archipelago record a coast still responding to the disappearance of its ice sheet.

Mediterranean Sea · Balearic Islands
This listing focuses on Ibiza's marine heritage: underwater seagrass meadows that support fish and invertebrates and connect with coastal ecosystems.

Indian Ocean coast · Western Australia
Shark Bay brings together seagrass habitat, marine wildlife and unusually saline waters.

Red Sea · Sudan
A Red Sea serial World Heritage property linking Sanganeb's isolated coral atoll with Dungonab Bay's reefs, mangroves, seagrasses, islands and dugong habitat.

Ganges-Brahmaputra-Meghna delta · Bay of Bengal · Bangladesh
A Bay of Bengal mangrove forest cut by tidal waterways, mudflats and salt-tolerant islands where river sediment, tides and marine influence create a shifting estuarine landscape.

Disko Bay · West Greenland · Arctic
An Arctic tidal fjord where Sermeq Kujalleq calves immense quantities of ice from the Greenland ice sheet into seawater, filling the fjord with brash ice and icebergs.

Hokkaido · Sea of Okhotsk · Japan
A Sea of Okhotsk peninsula and surrounding marine area where seasonal sea ice drives a highly productive food web linking plankton, fish, seabirds, marine mammals, rivers and forest wildlife.

Outer Hebrides · Scotland · North Atlantic
A remote North Atlantic archipelago where towering sea cliffs, surrounding ocean habitats and immense seabird colonies form a mixed natural and cultural World Heritage landscape.

North Atlantic · Vestmannaeyjar · Iceland
A volcanic island born from submarine eruptions south of Iceland and protected as a natural laboratory for studying how new oceanic land is colonised by life.
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