Hudson Grotto

Deep freshwater grotto ideal for technical and skills training.

Shore Access
32m Avg Depth
44m Max Depth

About this dive site

This dive site offers a unique experience with a silt bottom and varying depths. The average depth is approximately 106 feet, reaching a maximum of 140-145 feet depending on tidal conditions. Several platforms are available at 25', 60' and 100'. Lines run around the grotto at 30' and 60'. Visibility can be limited, presenting opportunities for practice in skills such as search and recovery or cave training. A cool hydrogen sulfide layer exists at a depth of about 105 feet. Water temperatures fluctuate seasonally, ranging from mid-80s during summer months to the high 60s in winter. It’s an excellent location for developing technical and/or deep diving skills.

Diving Freediving Snorkeling

Site Ratings

Big Marine Life Fair
Macro Marine Life Fair
Landscape Quality Very Good
Water Visibility Fair Viz
Famousness Well Known

Plan Your Visit

deep divetechnical divingadvanced onlycaverntraining siteturtlesilt

Marine Life

TurtlesBlue Gill

Things to Note

Difficulty:

Advanced

Exceeds recreational depth limits, requiring technical or deep diver training.

Hazards:
depthlow visibilitysilt outoverhead environment
Current Strength:

Mild

Diving Conditions

Water Temperature Now: 28.9°C

Wind

Tide

Swell

Swell Height (m)
Swell Period (s)

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