Palaha Cave in located on the North-West side of Niue, North of Alofi. It is a very easy place to find because there is a clear sign just beside the road. The track is short and easy, a little bit steep but nothing too demanding. Palaha is probably one of the biggest caves in Niue with a giant window opening to the reef flat. Once inside, if you walk in from the main saloon to the back of the cave, there are colorful stalactites and stalagmites in green and red composing a nice scenario. The reef flat is right in front of the cave mouth, also with easy access (just be careful because the wet rocks can be very slippery). The reef flat under the right conditions provides an easy, fun, and colorful snorkeling.
"Lots of fish, more than most places we've snorkeled. The bubbles from the underground heat are cool to see as well. The water on the Caribbean side is very calm and warm, which makes it ideal for snorkeling."