Rhoda Wall

Rhoda Wall is a magical place for pelagic enthusiasts, with visibility so good that it's like seeing through a window on a clear day. It is considered one of the best dive sites in Christmas Island. Grey reef sharks may be visible 30 meters below the surface if you look down into the pale blue from the comfort of your dive boat. There are many of wonderful diving spots on Christmas Island, but this coral-lined wall off the island's northwest coast is full of surprises, sloping down gradually in graduated colors of blue before abruptly ending at the 20-meter level.

Here you'll find beautiful fractal coral and hydrocorals, as well as vibrant tropical reef fish. Beyond the hill, there are some lovely coral stacks, which seem like stacks of colorful cards, as well as big plate corals. Christmas Island Wet n Dry Adventures, which has been operating on the island since 1996, will take you on an exclusive tour with only six divers. While most divers are satisfied with a full-length 3mm wetsuit, Teruki Hamanaka, a Japanese native, adds those who are cold can request a 5 mm steamer or a neoprene hood.

There are some lovely royal blue hydrocorals on the wall, as well as yellow and pink fusiliers darting up and down the wall like artwork. Keep an eye out for megafauna: enormous whale sharks are common during the season (November to March).

Best for: Advanced divers