I saw thousands of very pretty fish (including some very large groupers, puffer fish, porcupine fish, parrotfish, sweetlips, some big lion fish, and a titan triggerfish - I didn't know at the time how aggressive they can be, so I was glad he kept to himself!!), three hawksbill turtles, some ginormous spiky sea cucumbers, and some teeny tiny translucent shrimp. I think I also discovered a new fish, because I've looked at every single fish in the South Pacific and I can't find anything that remotely resembles it at all. There is a slight problem that I don't really remember what it looks like - other than it had a white head and red dorsal fins, but that's a minor technicality!!
I really didn't see much of Vanuatu, but would still recommend it if you're interested in lovely blue water, really friendly people, and the local beer Tusker isn't bad either!!