Aerial view
See the two dark blue parallel lines from left to right. That's the coral reef.
On this trip, we saw plenty of stuff. Personal favourites sighted were three turtles, a pair of baby black tip sharks, an adult black tip, flamenco dancer (floats just beneath the surface & related to nudibranch), a school of barracuda, also a lone barracuda lurking at about 10ft looking for prey (!), garfish hovering near our heads, trevally, parrotfish, a giant moray eel, a big puffer fish going in & out of the tabletop coral, a school of squid (it's squid season now) and much, much more.
We saw plenty of staghorn coral, tabletop, sponge, fire (don't touch!), fan coral (about two or three) and all kinds of soft coral. Apart from snorkelling at Renggis a few times, we also went to Tulai, Tomok & Genting.
I don't know all the names of the small coral fish but the variety & numbers seemed countless.
It was an excellent vacation.