Duiken in Noord-Sulawesi

Second-to-none diving & snorkeling in the Coral Triangle

North Sulawesi covers three main diving areas: the Bunaken National Marine Park, the Bangka archipelago and the Lembeh Strait,encompassing more than 150 dive sites.

Water temperature: between 26℃ (Lembeh) and up to 30℃ (Bunaken)

Topography: reef flats, coral walls, sand flats, pinnacles, slopes

Currents: generally mild, suitable for all skill levels

Map showing North Sulawesi and Thalassa Locations
Reef at Bunaken

Bunaken Marine Park​

Famed for its wall dives, Bunaken is home to countless turtles, and coral reefs with an abundance of marine life.

Juvenile Octopus in Lembeh Strait

Lembeh Strait

Macro photographers love Lembeh for the strange critters living on the black sand bottoms and among the corals.

Bangka Reef with Schooling Fish

Bangka Archipelago​

At the very tip of North Sulawesi, coral pinnacles are home to squid, giant frogfish and large schools of fish.

More diving…

Snorkeler near boat


The Bunaken National Marine Park is not just for divers — snorkeling is just as fantastic here. Our specialized snorkeling trips are fun for the whole family.

Thalassa's Dive Center

Diving with us

Our dive operation is built to give you the diving holiday of a lifetime. We get you in and out of the water safely, comfortably, and with facilities catering to your diving needs.

Diving crew and guests at Bunaken

PADI diving courses

We teach you scuba diving properly, at your own pace, and with zero shortcuts. This means that the PADI diving license you have earned with us forms a strong foundation for all your future diving trips.

Let's plan your next trip

Send us an email — we’d love to hear your vacation plans.

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