Addu
20 registered properties on 9 measured reefs. Addu — Seenu — is the country's southernmost atoll, a heart-shaped ring below the equator whose islands are joined by the longest causeway in the Maldives. A British RAF staging base on Gan left a lasting imprint and a distinct southern dialect.
What’s actually known about the timing.
The far south, and unusual: Addu’s mantas appear to stay. The deep channels either side may simply be too costly to cross.
The dry season, and the shorter of the two. Currents run east to west. Clearer water, calmer seas, less plankton.
The wet season, and the longer one. Currents reverse to run west to east. Lower visibility, because the water is thick with the plankton the big filter-feeders come for.
The two seasons are not symmetric — the northeast monsoon is shorter and weaker, and April and December are transitions rather than a clean switch.
Which side of the atoll — and why the answer is two answers
One atoll has two different answers at once, and they are on opposite sides. The upstream flank takes clear ocean inflow, so that is where visibility is best. The downstream flank is where plankton piles up — so that is where the mantas feed. In the northeast monsoon the east side is the clear one and the west side is the feeding one; in the southwest monsoon they swap. A reef facing east is therefore a clear-water proposition in January and a manta proposition in August — not "better" in either, just different.
This is an atoll-scale pattern, not a per-reef rule. Whether animals actually aggregate still depends on local shape — a lagoon or channel that traps the plankton. Channel sites are tide-driven and fit it less cleanly, and Fuvahmulah, a lone oceanic platform with no lagoon, sits outside it entirely.
Reef manta ray
Year-roundA resident sub-population rather than a seasonal visit. Across some 335 surveys at Maa Kandu, about 86% of individuals were resighted — an average of eleven times each. It is assessed as a reproductive area. No month-by-month peak has been published, so we do not state one.
What we don’t know about Addu
- Turtles — no atoll-level seasonal study exists; treat them as year-round residents rather than a season
- Reef sharks — no atoll-level seasonal data
- A seasonal peak — the residency is documented, the monthly pattern is not
These are absent because no public source supports them here, not because nothing lives here. Per-reef sighting odds do not exist in any source we could find — open species records track where divers point cameras, not where animals are. Where you see a month-by-month wildlife chart for an individual resort, someone has estimated it.
The reefs of Addu
9 measured · best firstShangri-la Villingili Maldives
Maradhoo Feydhoo
Canareef Resort Maldives
South Palm Resort Maldives
Maradhoo
Hithadhoo
Feydhoo
Charming Holiday Lodge
Equator Village
Not scored
3propertiesEach reef opens its full Maldives Index profile — the evidence behind the score, and every property that snorkels it. Scores are modelled from satellite; none has been surveyed in the water.