The manta feast at Hanifaru — what actually happens in the bay.
Between late May and November, plankton blooms in Baa draw one of the planet's largest gatherings of reef mantas. Eleven mornings out with the rangers, measuring what the guidebooks don't admit.

Hanifaru Bay is a 1,300-metre horseshoe on the east edge of Baa Atoll, and for roughly seven months a year it is the single most reliable place on earth to see a manta feast. We've been out there under permit with the rangers for eleven consecutive mornings — here's what actually happens, and what the literature gets wrong.
Why here, why now
The southwest monsoon pushes plankton-rich water across the atoll and into Hanifaru. When the tide and the wind align, plankton concentrates into a dense soup — sometimes a full metre thick — that the mantas exploit by cyclone-feeding in organised chains. On a good morning you'll see thirty animals in the bay simultaneously, often including individual whale sharks.
What the guidebooks get wrong
First, the season is not a fixed block. 2024's best mornings were the last two weeks of September. 2025's were mid-July. The rangers track arrivals daily — we'd rather you book a ten-night window than a seven-night one, for this reason.
The bay only opens when conditions are right. Tell your resort your Hanifaru morning is flexible — you'll see more.
Second: you cannot dive. Hanifaru is strictly snorkelling-only since 2012. Resorts quoting 'Hanifaru dive trips' are either going elsewhere or telling you the wrong thing.