Stefan has been living and working as a dive center manager, diving instructor and guide in the Gulf of Thailand for the best part of a decade, which has allowed him virtually endless opportunities to indulge in his passion for teaching, diving, photography and all things aquatic. Today, Stefan leads the education department of Core Sea. Core Sea is a framework for marine environmentalists, scientists, divers and other passionate people which would like to preserve our biosphere, with a strategy based on reason and the scientific method.