
West Channels
Aldabra Atoll · Seychelles
The West Channels of Aldabra offer a series of narrow passages through the atoll rim where thundering tidal flows sculpt extraordinary coral formations and create some of the Indian Ocean's most dramatic drift diving. Massive Napoleon wrasse, bumphead parrotfish schools, and white-tip shark aggregations patrol the channel walls, while the outer reef drop-off beyond the channels reveals pristine deepwater gorgonians and resident barracuda. The absolute isolation of this site means encounters carry a profound sense of discovery.
Conditions
Depth
5 to 40 m
Advanced depths
Current
Often strong
Can pick up on the edge
Visibility
20 to 35 m
Clearest in the calm season
Water
26 to 31°C
3mm wetsuit
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 26 | 26 | 27 | 28 | 28 | 27 | 26 | 26 | 26 | 27 | 27 | 26 |
| Vis (m) | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| Current | Strong | Strong | Moderate | Gentle | Moderate | Strong | Strong | Strong | Strong | Moderate | Moderate | Strong |
Your chances of seeing each animal
White-Throated Rail
Last confirmed May 14, 2026 · 9 records
Likely
About 6 in 10 dives
Brown Noddy
Last confirmed Mar 14, 2025 · 6 records
Likely
About 6 in 10 dives
Pied Crow
Last confirmed May 14, 2026 · 9 records
Likely
About 6 in 10 dives
Lesser Frigatebird
Last confirmed Mar 14, 2025 · 2 records
Sometimes
About 1 in 3 dives
Great Frigatebird
Last confirmed Mar 14, 2025 · 3 records
Rare
Now and then
Bumphead Parrotfish
Expected
Known here, not yet in recent logs
Giant Grouper
Expected
Known here, not yet in recent logs
Gear