New London Ledge Lighthouse functions as an artificial reef located in the Long Island Sound. The site features a submerged foundation at depths ranging from 1 to 9 metres. Divers can expect visibility between 5 and 10 metres. Access is strictly by boat, and the site is suitable for beginners. Water temperatures fluctuate significantly, ranging from 5C in winter to 22C in summer, necessitating appropriate thermal protection. Moderate to strong currents are common, so divers should remain close to the structure. Guided tours are available and recommended to navigate the foundation safely and manage current conditions effectively.

Stonington Point is a shore-entry dive site featuring a combination of natural reef and artificial reef structures. The site is suitable for beginners, with an average depth of 5 metres and a total range of 2 to 6 metres. Divers should be aware of moderate currents, surf, and potential hazards including boat traffic, entanglement, and sharp coral. Visibility at the site typically ranges between 2 and 9 metres. Water temperatures fluctuate significantly throughout the year, ranging from 5C in February to 21C in August. Night diving is permitted at this location, with typical dives lasting approximately 45 minutes. The habitat supports a variety of temperate marine life and invertebrates.

Larchmont is a shallow wreck dive located in the United States, resting at depths between 5 and 6 metres. This site is defined by its challenging conditions, including strong currents and visibility that can be limited to 5 metres. Due to the active current and potential entanglement risks posed by the wreck structure, this site is suited for intermediate divers comfortable managing difficult environments. Access is strictly by boat, and divers must remain vigilant regarding heavy surface vessel traffic. Divers should consult current tables before planning a dive and must deploy a surface marker buoy prior to ascent to ensure safety in this high-traffic area.

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Rocky Point in the Long Island Sound features a combination of natural and artificial reef structures. Divers can explore this site at depths ranging from 5 to 18 metres. Access is available via both shore and boat entries. Conditions include mild currents, though divers should be prepared for surge and swell upon entry. Visibility typically ranges between 5 and 15 metres but can shift rapidly during a dive. Water temperatures fluctuate significantly throughout the year, ranging from 4C to 18C, necessitating appropriate thermal protection for the season. The site is suited for intermediate divers, with typical dive times around 40 minutes.

Montauk Jettys in Long Island Sound provide a shallow shore dive ranging from 1 to 7 metres in depth. The jetty structure functions as an artificial reef, offering hard substrate for local marine life to colonise. Divers can expect mild currents and visibility between 3 and 6 metres. Due to the potential for surf, surge, and boat traffic, divers should exercise caution during entry and exit and use a surface marker buoy. This site is suitable for beginners and supports night diving. Parking is available on-site, though conditions vary, and divers should assess the shore break before entering the water.

Greenport Jetty is an artificial reef located in the Long Island Sound, offering shallow depths between 3 and 5 metres. This site is suitable for beginners and snorkellers, with both shore and boat access available. Visibility typically ranges from 5 to 10 metres, and the area experiences mild currents. Water temperatures fluctuate significantly throughout the year, ranging from 4C to 22C, requiring appropriate thermal protection. Divers should maintain high vigilance for boat traffic near the entry point and deploy a surface marker buoy. Be aware of jellyfish, which may congregate in the shallows during warmer months.

Secret Beach in the Long Island Sound offers a shallow reef and kelp forest environment suitable for beginners. Divers and snorkellers can expect an average depth of 3 metres, with visibility ranging from 2 to 9 metres. Entry is via the shore, and the site is accessible for both diving and snorkelling activities. Due to the nature of the location, divers should remain aware of boat traffic in the area. Water temperatures fluctuate significantly throughout the year, ranging from 4C in February to 22C in July and August. The habitat supports a variety of temperate marine life typical of the region, including various reef fish and invertebrates.