Michael Sotiriou
Michael was born in Sweden to a Greek father and a Swedish mother. He is a Master Instructor and the owner of Navy’s Waterworld. Mike has spent his summers on Santorini for many years and been running Navys Waterworld since 2005.

Siri Sotiriou
Siri is Michaels wife and co-owner of Navys Waterworld. She´s a PADI Dive Master and has been diving since she was 16 years old

Owen Butler
Dive Center Manager and Master Instructor Owen is from England and has been working with diving around the world since 2003. He’s been manager for Navys Waterworld since 2008 and is in charge of all our higher dive education.

Daniel Holmstedt
Padi Instructor Daniel is from Sweden where he completed his military service as a diver. He’s been working professionally with scuba diving for three years at Navys Waterworld and is also one of our boat captains.

Jens Mildner
Padi Instructor Jens is an Instructor from Sweden who comes and helps us out during the high season. He’s been on Santorini for a couple of summers and knows the Island very well.

Apotsolos Stylianopoulos
Padi Instructor Apo is from Pireaus but has been living on Santorini for 15 years now. He’s our local guide underwater and conducts all our Greek classes. Apo has been working with us for four seasons now.

Pierre-Yves Cousteau
Pierre is our french Instructor who stayed on Santorini and helped us out during the 2009 season.

Eric Hallberg
Eric is in charge of our lectures on the Mediterranean Sea and can answer almost all questions about marine life you might have.

Fredrik Lövstad-Waldegren
Padi Course Director Fredrik is our Course Director from Sweden. He come down to Santorini a couple of times a year and conducts our Instructor Development Courses.