Baa Atoll is a UNESCO biosphere reserve, and its best-known corner is Hanifaru Bay, a small, shallow inlet on the edge of the reef. During the southwest monsoon, roughly May to November, currents push plankton into the bay. On the right day, dozens of manta rays arrive to feed, sometimes with whale sharks among them.
Snorkel, do not dive
Hanifaru is a protected area. Scuba diving is not allowed inside the bay, visitor numbers are limited, and rangers manage each session. You snorkel at the surface while the mantas loop below you, which is why it feels so close.
Timing is everything
Manta numbers depend on the moon, the tide and the plankton, so nothing is guaranteed. Resorts in Baa watch conditions daily and send boats when the bay is busy. Staying several nights in the atoll gives you the best chance.