- Location: Ari Atoll
- Site Depth: 30 meters
- Site Visability: 10 - 20 meters
- Currents: Can be strong
- Difficulty Rating: Intermediate
Madi means ‘ray' in Dhivehi. In the northeast season this is a superb manta ray cleaning station. As with many good manta points, the reef slopes down gently from its top at 8m (25ft) to the atoll floor at 30m (100ft). Although there are many cleaning stations along this 1km (½ mile) reef, the area where the mantas are most active is midway along the northern side.
A deep basin, almost 100m (110yd) across has formed in the coral, and, as the currents flow out of the atoll, the waters eddy in the basin. This attracts the mantas, which hover like great spaceships in the current. To the east of the basin the reef forms a wall which drops steeply down to the sand floor at 30m (100ft). At a depth of 25m (80ft) there is a large cave running along the reef for 200m (220yd).