Manta Rays are expected December through February in Palau, Micronesia.

December to April is the best time to visit Maldives.

Best weather conditions existing from November to April in Similan Island, Thailand.

The dive season in Indonesia runs all year round. But to avoid rainy season in many provinces, you should visit here from April to December. You can get best visibility in Manado from November until the end of January.