Beach 8th Street in the Long Island Sound offers a varied underwater environment featuring muck, artificial reef, and natural reef sections. Divers navigate between four dive cages connected by marked lines, reaching depths of 5 to 6 metres with an average of 4 metres. This shore entry site is suitable for beginners, though conditions require careful planning as currents can be strong and visibility fluctuates between 1 and 6 metres. Divers must use a dive flag and plan for high slack tide. Hazards include boat traffic, entanglement risks, and jellyfish. Facilities at the site include parking and toilets, with typical dives lasting 60 minutes.

The Pinta is a shipwreck located in the United States that rests on its port side on a sandy bottom. The wreck lies at depths ranging from 17 to 27 metres, with an average depth of 23 metres. The bow remains intact, though the structure shows significant signs of deterioration. Access to this site requires a boat, as it is situated 12 kilometres from the shore. Divers should be prepared for moderate currents, low visibility between 3 and 12 metres, and potential hazards including entanglement, surge, and overhead environments. This site is suitable for intermediate divers and supports night diving, with typical dive times around 45 minutes.

The Iberia is a shipwreck located in Long Island Sound, situated approximately 4828 metres from shore. The site lies at depths ranging from 13 to 18 metres, with an average depth of 18 metres. The wreckage is split, with the sterncastle and rudder resting on the sea floor at a distance from the main section. Access to this site requires a boat. Divers should be prepared for variable currents and low visibility, which typically ranges between 3 and 5 metres. Given the depth, potential for entanglement, and overhead environment, this site is suited for intermediate divers. Night diving is permitted at this location.

Maclearie Park is a shore-entry dive site in the United States featuring a mix of muck and artificial reef topography. The site is suitable for beginners, with depths ranging from 2 to 9 metres and an average depth of 5 metres. Divers should be aware of potential hazards including boat traffic, entanglement risks, and strong currents. Visibility is generally low, typically between 2 and 5 metres. Facilities at the park include parking, toilets, showers, and gear storage. Night diving is permitted at this location, with typical dive times lasting around 60 minutes. Water temperatures fluctuate significantly throughout the year, ranging from 5C in February to 21C in July and August.

The USS Algol is a technical wreck site located in the United States, resting at depths between 70 and 110 metres. This artificial reef requires advanced decompression diving skills due to its significant depth and overhead environment. Divers experience visibility ranging from 10 to 50 metres, though moderate currents and cold water temperatures between 3 and 13 degrees Celsius are constant factors. Access is strictly by boat, and the site is suited for intermediate technical divers. Given the depth, nitrogen narcosis is a primary consideration, and a drysuit with thermal protection is essential for all dives. Boat charters and guided tours are available to assist with navigating this deep-water wreck.

Railroad Bridge is a shallow artificial reef located off the coast of Manasquan, United States. The site sits at depths between 2 and 6 metres, making it suitable for beginners. Divers and snorkellers can encounter common species including horseshoe crabs, gurnards, wrasses, sea bass, pipefish, crabs, and common sea stars. Less frequently, pufferfish, grey triggerfish, toadfish, spotfin butterflyfish, drum, croaker, angelfish, and bigeyes are recorded. Shore entry requires navigating surf and a shore break. Conditions include strong currents and variable visibility between 5 and 15 metres. Divers must remain vigilant for boat traffic and potential entanglement risks associated with the artificial structure.

The Lizzie D, also known as the Rum Runner, is an 84-foot tugboat that sank in 1922. Resting upright in 24 to 25 metres of water, the hull remains largely intact, though the upper deck has collapsed and lies in pieces around the wreck. Located 14.5 kilometres from shore, this site requires boat access and is suited for intermediate divers due to the overhead environment and potential for entanglement. Visibility at the site varies significantly, ranging from 5 to 40 metres, with mild currents. Divers should be aware of sharp structures on the wreck. The site offers a 60-minute typical dive duration.

Orchard Beach is a shallow shore dive in Long Island Sound, featuring a mix of muck and reef habitats. With an average depth of 1 metre and a maximum of 2 metres, this site is suitable for beginner divers. Entry is from the shore, though divers must remain cautious of rip currents and variable visibility. Managing buoyancy is essential to avoid stirring up sediment from the muck bottom. The site is well-supported by facilities including parking, toilets, showers, changing rooms, and a cafe. Divers should check local current reports before entering the water, as conditions can change quickly.