Destination guide
Connecticut, United States has 6 public dive sites on PickADive. Use the list below to compare mapped sites by depth, access, difficulty, ratings, and reviews before opening a site page.
Seasonal patterns
Typical conditions by month across dive sites in Connecticut, United States— historical patterns, not a forecast.
From 5 sites’ typical conditions · historical typicals, not a forecast
Best time to dive Connecticut, United States: full month-by-month data →
Showing 1–6 of 6
Connecticut · 0–12.2 m
A designated scuba area on Mashapaug Lake inside Bigelow Hollow State Park in Union, one of the few Connecticut state park waters that formally permits diving. The dive access is a small cove about a quarter mile from the Mashapaug Lake boat ramp, over a rocky and sandy freshwater bottom with a maximum depth around 40 feet.
Connecticut · 0–25.9 m
A flooded 27-acre historic brownstone quarry in Portland operated as an adventure park, with 80-100 foot cliffs surrounding clear fresh water. Scuba diving is permitted in the north quarry for certified divers who buy an adventure pass, with depths to about 85 feet and submerged quarry features and attractions to explore.
Connecticut · Up to 25.9 m
Connecticut's largest lake, a 1928 man-made reservoir whose flooded valley still holds old roads, stone walls, foundations, Model T-era vehicles and small plane wreckage that divers seek out. The Candlewood Lake Authority acknowledges it as a popular dive destination but warns that it is dark, low-visibility diving requiring lights and preparation. Most diving is done from boats or town launch areas around the lake.
Connecticut · Up to 15.2 m
A 528-acre natural lake in Salem/Bozrah/Montville famous for the house that fell through the ice in 1895 while being moved across the frozen lake, settling in deep water near the middle. Divers have long visited the collapsed structure, though by the 2000s it was reported mostly rotted away. The site is usually reached by boat from the state launch.
Connecticut · —
A 288-acre lake separated from Candlewood Lake by a causeway, with a state park on its shore in New Fairfield that explicitly allows scuba diving along with swimming and boating. Diving is over a gently sloping freshwater bottom from the park's shoreline; it is a popular regional training spot with typically modest visibility.
Connecticut · 1.5–6.1 m
Connecticut's most popular shore dive, at the tip of Stonington Borough where two stone jetties shelter a sandy beach entry. The shoreline slopes gently to about 20 feet over boulder fields covered in kelp and seaweed, and Gulf Stream-carried tropical juveniles appear in late summer. It is an easy, protected site widely used for training and night dives.
Connecticut has 6 public dive sites in the PickADive catalog. Start with the map when coastline, nearby alternatives, and travel distance matter.
Explore sites on the mapCurrent public data shows 3 intermediate dive sites. Listed depths range from about 0m to 26m where available. Shore is the most common listed access type. Use those signals as a starting point, then confirm the plan against training, equipment, and current local guidance.
PickADive can help with research and comparison, but it does not certify that a dive is safe today. Weather, current, visibility, entry, boat traffic, and local rules can change quickly.
How condition context worksUse the ranked list on this page to compare 6 public dive sites in Connecticut. PickADive highlights ratings, reviews, depth, access type, difficulty, and mapped location so you can move from destination research to a specific site page. 4 dive sites are recorded with shore access and 1 with boat access.
Listed PickADive depth data for Connecticut ranges from about 0m to 26m. Both shallow shore entries and deeper boat sites appear in the catalog: 4 dive sites are recorded with shore access and 1 with boat access. Use that as a research starting point, then verify current conditions and site-specific guidance.
Yes. Use the map link on this page to compare Connecticut dive sites by location, coastline, nearby alternatives, and individual site details.