The entire coastline of Papua New Guinea is famed for its unique marine biodiversity. Milne Bay is the most prominent dive location. Along with underwater wildlife, you're welcome to discover and explore a few local wrecks scattered over the seabed.
Another spectacular place is Kimbe Bay off the northern coast of New Britain island. More than half of the coral species of Indo-Pacific region can be found here. It is often considered to be one of the last locations in the world where true coral biodiversity can be observed.
Diving in Papua New Guinea is a year-round activity, but the best season is considered between January and April—when the rest of Papua New Guinea has its rainy season, underwater life just abounds!