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Les Casquets
Guernsey
sea
3 Dive Sites
0 Dive Centers
Les Casquets, a notorious cluster of rocks west of Alderney, beckons experienced divers with its challenging and dramatic underwater terrain. Explore steep walls and massive boulders that create a unique habitat for a variety of marine creatures.
Best Time to Dive
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 10°C | 10°C | 11°C | 12°C | 13°C | 15°C | 16°C | 17°C | 16°C | 14°C | 12°C | 11°C |
Peak Season
May, June, July, August, September
May
Seabird nesting season begins
Jun
Grey seal pups start to appear
Jul
Abundant kelp forests
Aug
Good chance of spotting dolphins
More monthly highlights
Sep
End of seabird nesting season
Photo Gallery
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Casquets Lighthouse
The waters around the iconic Casquets Lighthouse in Guernsey are a testament to its treacherous repu...
35m
1 species
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The Oregon
The Oregon, a steamship lost in 1886, rests near the treacherous Casquets rocks, offering an atmosph...
45m
1 species
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The Casquets Pinnacles
Explore the dramatic underwater topography of the Casquets Pinnacles, a site defined by its towering...
40m
1 species
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