Peapea Cave, Savai'i

This lava tube cave, named after the swallows that inhabit it, is easily accessible from the road and runs more than a kilometre towards the coast.

This cave is home to a unique nocturnal creature, the white rumped swiftlet. The 'clicking' of the birds is clearly audible as they fly in the darkness.

The entrance to the cave is locked and that makes a guide essential.