I've read about the dead corals but I'm still quite keen to try diving in Perhentian as it seems good enough for beginners. If I could afford more days I'd like to get my AOW with Turtle Bay (which has many good reviews on TripAdvisor) - anyone dove with them before?
Also, for people who frequent the island, do you book accommodation in advance or most of the guesthouses are based on walk-in? My friends and I will be budget travelling so backpackers area is the way to go.