Our organic veggie garden at Manado

About Thalassa

Practicing sustainable diving in Indonesia, especially in an area like North Sulawesi, comes with its own set of responsibilities. This is why we find it so important to be more than just a resort. We want our people to grow and step beyond their imposed boundaries. As a PADI AWARE resort, education is a core value of ours: we built a school, we train our guides in-house, and we encourage our team to outdo themselves.

PADI Course Director Simone Gerritsen

Simone Gerritsen

Managing owner, PADI Course Director

Hi, my name is Simone

I did my first dive in 1978, and I was instantly hooked. In 1987 I opened the Thalassa Dive Shop in Amsterdam. But when I was given the chance to start a dive center here in beautiful North Sulawesi, I didn’t have to think twice — I moved to Manado in 1996.

Thalassa Dive Center opened in 2001 as a joint venture with a luxury resort, and we certified many divers in that time. Eventually I discovered the Barracuda, an old, abandoned resort on a beautiful estate near Manado. I managed to strike a deal with the land owner, and this is how Thalassa Manado was born in 2013.

A People Company​

We place a lot of value in our people. This is why we are always looking for new ways to involve personnel with our idea of “giving back”. For instance, we organize beach clean ups, marine lectures, or simply have a dance party with guests.

These experiences are meaningful and valuable, with self-actualization as the goal. It’s often easier said than done, but it’s just one of the reasons guests return as friends — just to see how everyone in the company is getting on.

Collage of different staff members

Thalassa's history


Thalassa Dive Center

Thalassa Dive Center begins operations as an independent dive center under the roof of a large luxury resort. Our divers discover the beauty of the Bunaken National Marine Park, still a highly underrated diving destination at the time.

Thalassa Dive Center team in 2001


The School

The idea started to form to build a vocational junior high school. Building began in 2006, and upon completion, the school proved to be a great success. This is why local kids now find a job as a dive guide or resort/hotel staff.

Classroom interior in 2010


Thalassa Dive Resort Manado

Building upon the former glory of Barracuda Resort, Thalassa Dive Resort Manado became a reality. The first small steps were taken by renovating the old wooden Cottages. Similarly, construction of the dive center and pizza bar was started as well.

Dive center under construction in 2013


A New Dive Center

The arrival or our new dive center finally made Thalassa a “proper” dive resort. In the mean time, the number of rooms was expanding and new guests kept coming.

Dive Center at Thalassa Manado


Final Rooms Added

The last big construction project was the building of nine luxury bungalows, so we could offer guests four different room categories.

A bungalow under construction


The Start of Thalassa Lembeh

To offer more muck diving, as well as a different resort experience to our guests, we started building Thalassa Lembeh. The first brick was laid in a muddy hill in May 2017, and on October 1st 2017 we officially opened the resort!

Laying the first brick

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