Manta season

From May to October, reef manta rays in Maldives are found across the eastern side of atolls and from November to April, they're sighted on the western side of atolls.
According to experts the best time to spot a whale shark in Maldives is in the month May, November and December, the week building up to a full moon, and 3 to 5 hours before the high tide. Nevertheless, Maldives is a wonderful destination to watch whale sharks.