From January to the end of April is the rainy season, so the humidity is high and we cannot guarantee dives every day. However, when we do, diving in the bay is limited due to poor visibility. We therefore focus our excursions on the most distant destinations. Excursions to Iranja, Mitsio and even Castor. - From May to the end of July, it's the beginning of winter, the humidity drops, the temperatures are quite pleasant and all the dive sites are accessible with still few visitors. It is an ideal time to visit and enjoy the beauty of the place, less crowded after the rainy season. - August to October: humpback whale season. - September to December: whale shark season, with most sightings taking place in October and November. - December/January: Manta Rays, Devil Rays, Hammerhead Sharks, with most sightings taking place in December. - Better visibility: Nosy Be: May to October. Mitsio: October to July. Iranja: All year round.