Big Blue Diving Resort | 106 followers on LinkedIn. Welcome to Big Blue Diving, Koh Tao's most recommended PADI Dive Center, SSI Platinum Instructor Training Facility, PADI Instructors, BSAC Center of Excellence and a TDI/SDI 5 Star Instructor Development Facility, with accommodation for all budgets ranging from FREE dormitories to poolside Air conditioned rooms with sunset views al fresco classrooms as well as the most idyllic beachfront Restaurant & Bar. Of course any business aim is to make a profit but how one makes the profit is our aim! Koh Tao is a relaxed little tropical island paradise.