Somer Dive Center it a plain unassuming office, but their dive boat is wonderful. They run day trips on a boat the size of a small liveaboard. A decent breakfast and lunch is included. The dive boat carries life preservers, oxygen, and even a emergency raft (rare in most of Asia). They also have a small chaser boat to pickup divers caught in the current. The best thing is their long ladder, a welcome sight for a tired diver.