Cassidaigne Seamount
Marseille Calanques · France
The Cassidaigne seamount rises from 90 m to a summit at 32 m and acts as a current-baited aggregation point for some of the largest pelagic assemblages in the northwestern Mediterranean. Silver tornadoes of European barracuda hang mid-water above the summit while common dentex — bronze and bull-headed — patrol the flanks in loose hunting packs. Moray eels occupy every crevice and large conger eels coil beneath overhangs at depth.
Conditions
Depth
32 to 90 m
Advanced depths
Current
Usually gentle
Can pick up on the edge
Visibility
20 to 35 m
Clearest in the calm season
Water
13 to 26°C
3mm wetsuit
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 13 | 13 | 13 | 14 | 16 | 19 | 22 | 23 | 22 | 19 | 16 | 14 |
| Vis (m) | 15 | 15 | 15 | 15 | 20 | 20 | 20 | 20 | 20 | 20 | 15 | 15 |
| Current | Moderate | Moderate | Moderate | Gentle | Gentle | Gentle | Gentle | Gentle | Gentle | Moderate | Moderate | Moderate |
Your chances of seeing each animal
European barracuda
Last confirmed Jul 5, 2026 · 125 records
Almost always
Nearly every dive
Mediterranean moray
Last confirmed Jul 8, 2026 · 351 records
Almost always
Nearly every dive
Conger eel
Last confirmed Jun 28, 2026 · 155 records
Almost always
Nearly every dive
Leopard Sea Slug
Last confirmed Jul 5, 2026 · 352 records
Almost always
Nearly every dive
Red Scorpionfish
Last confirmed Jul 5, 2026 · 325 records
Almost always
Nearly every dive
Tricolored Felimare
Last confirmed Jul 5, 2026 · 358 records
Almost always
Nearly every dive
Pink Coryphella
Last confirmed Jul 5, 2026 · 306 records
Almost always
Nearly every dive
Common dentex
Last confirmed Jun 28, 2026 · 46 records
Almost always
Nearly every dive
Gear