La Catedral
Paracas · Peru
La Catedral is a dramatic arch formation carved by Pacific swells into the Paracas peninsula coastline, creating a cathedral-like underwater grotto where the cold Humboldt Current sweeps through the arch and delivers nutrients to every surface. The grotto walls are plastered with orange and yellow cup corals, purple sea urchins, and carpets of tunicates that transform the stone into a living tapestry visible in the gloom. California sea lions regularly use the arch as a thoroughfare, appearing suddenly from the blue and vanishing just as quickly — a spatial experience unlike anything else in Peruvian diving.
Conditions
Depth
6 to 22 m
Open water and up
Current
Can be moderate
Can pick up on the edge
Visibility
12 to 22 m
Clearest in the calm season
Water
13 to 21°C
7mm wetsuit or drysuit
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 17 | 17 | 18 | 18 | 16 | 14 | 13 | 13 | 14 | 15 | 16 | 17 |
| Vis (m) | 8 | 8 | 10 | 10 | 10 | 12 | 12 | 12 | 12 | 10 | 8 | 8 |
| Current | Gentle | Gentle | Still | Still | Gentle | Moderate | Moderate | Moderate | Moderate | Gentle | Gentle | Gentle |
Your chances of seeing each animal
South American Sea Lion
Last confirmed Jun 25, 2026 · 274 records
Almost always
Nearly every dive
Humboldt Penguin
Last confirmed Jun 30, 2026 · 213 records
Almost always
Nearly every dive
American Oystercatcher
Last confirmed Jun 30, 2026 · 85 records
Almost always
Nearly every dive
Ruddy Turnstone
Last confirmed Apr 20, 2026 · 75 records
Almost always
Nearly every dive
Hudsonian Whimbrel
Last confirmed May 3, 2026 · 62 records
Almost always
Nearly every dive
Orange Cup Coral
Expected
Known here, not yet in recent logs
Octopus
Expected
Known here, not yet in recent logs
Gear