There are a number of waterfalls on the main island Efete in Vanuatu.

Some of these are very accessible as they are right next to the road such as this one.



Others are a bit more of a hike, but definitely worth it...such as these ones at Mele.

Unfortunately the access to the falls is not being very well managed. They have cut steps into the limestone and scrubbing the surface to avoid people slipping when walking. Unfortunately this also erodes and changes the waterfalls and I think they should put a walking track adjacent to the falls instead.