Brazil's first marine national park protecting the largest coral reef system in the South Atlantic, home to endemic mushroom-shaped coral formations called chapeiroes and seasonal humpback whale breeding grounds.

Depth25m

Levelintermediate

Entryboat

Currentmoderate

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Comoros

wall

Grand Comore Chomoni Coast

Moroni · Grande Comore · Comoros

Volcanic walls plunging from the shore into the deep Mozambique Channel off Grand Comore, where coelacanth habitat, pristine hard coral, and passing humpback whales create one of the Indian Ocean's most unexplored dive frontiers.

Japan

reef

Amami Oshima Coral Reef

Amami · Kagoshima Prefecture · Japan

A subtropical island between Kyushu and Okinawa where pristine coral reefs thrive in the warm Kuroshio Current, supporting sea turtles, humpback whales in winter, and some of Japan's healthiest hard coral coverage.

Kerama Blue Zamami

Zamami · Okinawa Prefecture · Japan

Crystal-clear waters nicknamed Kerama Blue surround Zamami Island's coral gardens, where green sea turtles glide over pristine staghorn formations and humpback whales pass through during winter months.

Mexico

reef

Huatulco Reef

Santa Cruz Huatulco · Oaxaca · Mexico

An undiscovered Pacific reef system along Oaxaca's dramatic coastline where warm currents support healthy coral communities, schooling mobula rays, and humpback whale encounters from December to March.

Oman

reef

Hallaniyat Islands

Salalah · Dhofar Governorate · Oman

A remote archipelago off Oman's Dhofar coast where Arabian Sea upwelling creates a nutrient-rich marine environment with humpback whales, whale sharks, and pristine coral reefs visited by only a handful of divers annually.