Visitors should bring a good suntan oil and a good mosquito repellent. If you've plans of doing a lot of walking, a hat is recommended for the tropical sun. A torch comes in handy but isn't essential. Cool comfortable clothes and a beach sarong contents most people!
The underwater wonders in Vanuatu should not be missed so make sure you bring goggles and snorkel. Reef shoes for swimming are a good idea but any sandal does just as well.