For additional info contact my friend Thien about availability, last check there were four spaces available. Here is a web site for description of the trip http://scubatuna.com/eGuide.CelebesExpedition.pdf 9 days / 8 nights, Airport transfers, Unlimited diving, twin-share accommodation & all meals on MS Symphony for 6 nights, 2 nights accommodation at a Dive Resort, 22-24 dives, and unlimited house reef dives in front of your room. Remember to bring your camera & plenty of memory cards. dive@scubatuna.com