The Pinthas is a shallow reef site located in Cape Ann, United States, with depths ranging from 4 to 7 metres. This site is accessed by boat and features a moderate current, requiring divers to plan their movement carefully to drift back toward the exit point. Visibility is consistently around 5 metres, creating an intimate environment suitable for observant diving. The reef supports a variety of marine life typical of the region, including various reef fish and invertebrates. Given the shallow depth and manageable conditions, the site is suitable for newly certified divers and those looking to build confidence, with year-round diving opportunities available.

Boston Harbor in Cape Ann offers a varied underwater environment featuring reefs, wrecks, and artificial reefs suitable for intermediate divers. The site requires boat access and is subject to moderate currents and variable visibility ranging from 5 to 25 metres. Depths at this location extend from 10 to 70 metres, with an average depth of 45 metres. Due to cold water temperatures between 4C and 12C, a dry suit is required in winter, while a 7mm wetsuit with a hood is recommended during summer months. Divers should remain vigilant regarding boat traffic, entanglement risks, and potential surf conditions.

The Josephine Marie is a deep wreck located 9656 metres off the coast of Cape Ann. Resting at a constant depth of 32 metres, this site is strictly for advanced divers. Conditions are challenging, featuring strong currents and visibility ranging from 9 to 12 metres. Water temperatures remain cold, rarely exceeding 10 degrees Celsius at depth, necessitating the use of a drysuit. Divers must manage significant entanglement risks within the wreck structure and remain vigilant regarding heavy local boat traffic. A surface marker buoy is essential for safety, and descents should be timed to coincide with slack water to mitigate the impact of the currents.

The Unidentified Trawler is a shipwreck located on Stellwagen Bank near Cape Ann, United States. Resting at depths of 32 to 33 metres, this site functions as an artificial reef on an otherwise featureless bottom. Divers encounter strong currents and visibility ranging from 5 to 12 metres. Due to the significant depth, cold water temperatures between 4 and 16 degrees Celsius, and entanglement risks within the structure, this site is suitable only for advanced divers. Boat access is required, and surface markers are essential due to active boat traffic. Dry suits are recommended for thermal protection, and dives should be planned around slack water to manage current intensity.

Sandwich Town Beach provides a shallow shore dive featuring both natural reef and artificial reef structures. Reaching a maximum depth of 10 metres with an average of 6 metres, the site is suitable for beginners due to its mild currents. Divers should exercise caution during shore entry to navigate the surf and shore break. Visibility is variable, ranging from 3 to 8 metres. Water temperatures fluctuate between 4C and 19C, necessitating appropriate thermal protection such as a drysuit or thick wetsuit. Parking is available on-site, and the location is accessible for both day and night diving.

Sponge Forest is a deep-water reef located off Cape Ann, requiring boat access. The site sits at depths between 20 and 33 metres, with an average depth of 32 metres. Divers encounter strong currents and visibility reaching 30 metres. Water temperatures are cold, ranging from 5 to 16 degrees Celsius, with temperatures at depth rarely exceeding 10 degrees Celsius. Due to the depth, cold conditions, and potential for strong currents, this site is suitable only for advanced divers. Hazards include boat traffic, entanglement risks, jellyfish, and sharks. Divers should use a drysuit and maintain strict buoyancy control while monitoring depth and current conditions closely.

Nahant Beach in Cape Ann offers a diverse underwater topography featuring reefs, canyons, caverns, and pinnacles. This shore-entry site is suitable for beginners, with depths ranging from 3 to 14 metres and an average depth of 8 metres. Divers should be prepared for cold water temperatures between 4 and 16C, alongside moderate currents and variable visibility of 6 to 9 metres. Hazards include surf, surge, rip currents, and potential entanglement. The site provides parking and toilet facilities for visitors. Typical dives here last approximately 50 minutes. Due to the presence of caverns and overhead environments, divers should maintain appropriate training and awareness of their surroundings.

Great Lakes & Northeast Wreck in Cape Ann offers a diverse underwater landscape featuring natural reef, artificial reef structures, and wreck remains. Suitable for intermediate divers, the site ranges in depth from 3 to 18 metres. Shore entry requires caution due to surf and sharp rocks. Divers should expect moderate currents and variable visibility between 3 and 10 metres. Water temperatures fluctuate between 4C and 16C, necessitating appropriate thermal protection. Given the presence of boat traffic, the use of a surface marker buoy is strongly advised throughout the dive. Facilities at the site include parking, showers, a rinse station, and a dive shop providing air fills.