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Manta Alley is the premier dive site in south Komodo and one of the most extraordinary manta ray encounter locations in the world. Unlike the central Manta Point, which offers scattered individual encounters, Manta Alley delivers massive aggregations of 20 to 50+ manta rays during peak season.
| Detail | Info |
|---|---|
| Location | Southern tip of Komodo Island |
| Depth range | 5–40 metres |
| Current | Mild to moderate (calmer than northern sites) |
| Visibility | 5–15 metres (plankton-rich water) |
| Water temperature | 19–26°C (cold upwellings common) |
| Level | All certified levels (currents manageable, but cold water and low vis add challenge) |
| Best season | November–April (peak aggregations December–February) |
| Access | Liveaboard only — too far from Labuan Bajo for day trips |
The site sits at the intersection of the Indian Ocean and the Flores Sea, where nutrient-rich cold water upwells along Komodo's southern coast. This creates dense plankton blooms that attract reef manta rays in extraordinary numbers. During peak months, divers regularly witness:
Dives typically begin with a descent to the cleaning stations at 10 to 15 metres. Divers settle on the sandy seabed at a respectful distance and wait for mantas to arrive. In peak season, the wait is rarely long — mantas are almost constantly present. The reduced visibility actually adds to the experience, as mantas materialise from the green water just metres away.