If you visit only one island outside of Efate, this should be it. Tanna is an extraordinary place with the world's most accessible active volcano, sublime secluded beaches and some of Vanuatu's most intriguing traditional village life.
Second only to Santo in size, Malekula is a wild island famed for its tribal groups, cannibal sites, highland trekking and protected marine areas.
Set around pretty Vila Bay and a series of lagoons, beaches and offshore islands, Port Vila is a surprisingly compact but energetic town. It's a little rough around the edges, with a few traffic-clogged main streets offering up a supply of souvenirs, markets, and waterfront restaurants and cafes with some lingering French influences. Beneath this veneer is an odd mix of holidaymakers, cruise ship day trippers, expats and yachties, along with ni-Van drawn from all over the archipelago.
Efate is Vanuatu's main island, politically, economically, industrially and in terms of population and tourism. Even so, outside of the capital Port Vila it's pretty low-key with some of the village life you'll find on other islands.
Better known simply as Santo, this is Vanuatu's largest island and one of its most enjoyable. It doesn't have quite the activities and infrastructure of Port Vila, but it does have world-class diving, some excellent upmarket island resorts and some of the most jaw-droppingly beautiful beaches in the archipelago.