
El Bajo Seamount
Sea of Cortez · Mexico
3 submerged seamounts rise from 200 m to within 22 m of the surface roughly 12 km northeast of La Paz. El Bajo is ground zero for hammerhead shark aggregations in the Sea of Cortez: schools of up to 200 individuals form on the seamounts each summer, circling in the blue water column while mobula rays fly through in formation below them. The seamounts also concentrate whale sharks during August and September. Open-water current can be significant; divers must be comfortable with blue-water descents and strong lateral drift.
Conditions
Depth
22 to 60 m
Advanced depths
Current
Often strong
Can pick up on the edge
Visibility
10 to 20 m
Clearest in the calm season
Water
18 to 29°C
Tropical wetsuit
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 19 | 18 | 18 | 19 | 21 | 23 | 25 | 26 | 27 | 25 | 22 | 20 |
| Vis (m) | 15 | 15 | 15 | 15 | 15 | 15 | 10 | 10 | 10 | 15 | 15 | 15 |
| Current | Strong | Strong | Strong | Moderate | Moderate | Strong | Strong | Strong | Strong | Strong | Moderate | Strong |
Your chances of seeing each animal
Razor Surgeonfish
Last confirmed May 5, 2026 · 25 records
Very likely
Most dives
King Angelfish
Last confirmed May 5, 2026 · 20 records
Very likely
Most dives
Panamic Cushion Star
Last confirmed Apr 9, 2026 · 13 records
Very likely
Most dives
Panamic Sergeant Major
Last confirmed Apr 14, 2026 · 13 records
Very likely
Most dives
Mobula ray
Last confirmed Apr 9, 2026 · 4 records
Sometimes
About 1 in 3 dives
Scalloped hammerhead shark
Expected
Known here, not yet in recent logs
Whale shark
Expected
Known here, not yet in recent logs
Yellowfin tuna
Expected
Known here, not yet in recent logs
Gear