There are many islands (I think in total 84) and every island has its own charm. For example: Efate (with capital Port Vila and the waterfalls), Epi (known for its dugong-sea cow, rainforest and mountains), Tanna (working volcano, you can actually walk straight up to the rim/mouth of Volcano Yasur and see the lava inside), Ambrym (2 lava lakes), Santo (diving on the largest intact shipwreck of the world, the SS President Coolidge) and Pentecost (witness a land diving ceremony during certain months of the year, the way of bungy jumping before it became famous, this is not done with elastics, but with vines around their feet and from towers built out of vines and timber).