Frontier7 sites5 countries

Dive sites: Frontier

Frontier dive sites — depth, conditions, and required training level.

Gabon

Pongara National Park

Libreville · Estuaire Province · Gabon

An unexplored frontier of Central African diving where the equatorial Atlantic meets the Gabon estuary, yielding encounters with humpback whales, whale sharks, and pristine rocky reefs.

Indonesia

reef

Rote Island Ndana

Ba'a · East Nusa Tenggara · Indonesia

Indonesia's southernmost inhabited island with frontier reef diving where the Timor Sea meets the Indian Ocean, delivering pristine hard coral walls, pelagic encounters, and zero diver traffic at the edge of the Sahul Shelf.

Sawu Sea

Ba'a · East Nusa Tenggara · Indonesia

A vast pelagic wilderness between Timor and Sumba where deep oceanic upwellings attract blue whales, sperm whales, and oceanic manta rays to one of the last truly wild marine frontiers in Southeast Asia.

Philippines

reef

Batan Island Reef

Basco · Batanes · Philippines

The northernmost dive site in the Philippines, where the Luzon Strait's powerful currents nourish volcanic reefs teeming with subtropical species, surrounded by the dramatic stone houses and rolling green hills of the Ivatan homeland.

Solomon Islands

reef

Marovo Lagoon

Seghe · Western Province · Solomon Islands

The world's largest saltwater lagoon, a double-barrier reef system in the Solomon Islands where WWII wrecks, pristine coral walls, and encounters with dugongs and saltwater crocodiles define true frontier diving.

Sri Lanka

reef

Batticaloa Bar Reef

Batticaloa · Eastern Province · Sri Lanka

A sandstone bar reef off Sri Lanka's less-explored eastern coast where seasonal whale shark aggregations, reef manta rays, and recovering coral gardens offer pioneering diving in waters closed to tourism for decades during the civil war.

Kalpitiya Bar Reef

Kalpitiya · North Western Province · Sri Lanka

Sri Lanka's largest reef system off the Kalpitiya Peninsula, a shallow coral plateau emerging from monsoon-warmed waters where spinner dolphins, reef sharks, and recovering coral gardens create a frontier diving experience.