Portuguese Cove in Halifax Harbour offers a distinct underwater landscape defined by pink and purple rock valley formations interspersed with large sand ripples. This shore-entry reef site is suitable for intermediate divers and snorkelers, with depths ranging from 1 to 18 metres and an average depth of 7 metres. Visibility typically spans 9 to 12 metres. Conditions vary, with potential hazards including cold water, surf, and strong or rip currents. Divers should be prepared for cold North Atlantic temperatures, which fluctuate between 1 and 14 degrees Celsius throughout the year. A typical dive duration at this site is approximately 45 minutes.

Parliament Rock is a shore-entry reef dive located in Halifax Harbour, Nova Scotia. The site features a reef structure that descends from 15 to 30 metres. Visibility at this location ranges from 10 to 30 metres. Divers should be prepared for cold water temperatures, which fluctuate between 2 and 11 degrees Celsius throughout the year, making a drysuit essential. While currents are typically mild, they can shift, and strong tidal currents are a known hazard in the broader Bay of Fundy area. Divers are advised to confirm current conditions locally before entry. This site is suitable for intermediate divers.

New Bear Cove in Halifax Harbour offers a diverse underwater environment featuring a wreck, reef, and kelp forest. Divers can explore depths ranging from 6 to 21 metres, with an average depth of 15 metres. Access is via a shore entry, requiring a 100-metre walk from the parking area along a trail with removable barriers. Conditions include mild currents and visibility typically between 10 and 20 metres. Water temperatures fluctuate significantly throughout the year, ranging from 1°C in March to 14°C in September. Due to potential hazards such as entanglement, surge, and low visibility, this site is best suited for intermediate divers.

The Costa Rican Trader is a shipwreck located 70 metres offshore in Halifax Harbour, serving as an artificial reef. Divers encounter depths ranging from 15 to 30 metres, with an average depth of 23 metres. The site requires boat access and is suited for intermediate divers due to the depth and potential for entanglement within the structure. Visibility varies between 10 and 30 metres, while water temperatures remain cold, fluctuating between 1 and 11 degrees Celsius. Divers should use a drysuit and cold-water rated regulators. Species recorded around this area include seals, lobsters, wrasses, sea ravens, rock crabs, sea stars, tube worms, cod, flounder, brittle stars, snails, and sea squirts.

Herring Cove in Halifax Harbour offers a gentle, sloping dive profile consisting primarily of sand, bordered by rocky shorelines. Divers can explore areas featuring kelp forests and patches of eel grass. The site reaches depths between 3 and 16 metres, with an average depth of 10 metres. Access is via a shore entry, making it suitable for beginners. Conditions are generally mild, with visibility ranging from 10 to 15 metres. Water temperatures fluctuate significantly throughout the year, ranging from 1 to 16 degrees Celsius. Divers should remain aware of local boat traffic and potential surf conditions when planning their entry and exit.

Sandy Cove in Halifax Harbour provides a diverse shore dive featuring a combination of reef, kelp forest, and artificial reef structures. Located 50 metres from the shore, the site reaches depths between 8 and 18 metres with an average of 12 metres. Divers encounter mild currents and visibility ranging from 5 to 15 metres. The water temperature is cold, fluctuating between 2C and 14C throughout the year, necessitating appropriate thermal protection. Entry is from the shore, where divers should assess surf conditions before proceeding. Parking is available on-site for convenience. This site is suitable for beginners, with typical dives lasting around 40 minutes. Be aware of boat traffic in the area.

Isabells Beach is a shallow reef dive located in Halifax Harbour, suitable for beginner divers. The site features a reef structure at depths ranging from 4 to 8 metres, with an average depth of 6 metres. Divers can expect visibility between 5 and 10 metres. Entry is from the shore, where divers should remain cautious of surf and shore break. Due to water temperatures fluctuating between 2 and 16 degrees Celsius, a drysuit or thick wetsuit is essential. The site is accessible year-round and supports night diving. Divers should be aware of potential strong currents and maintain awareness of the deeper 21-metre profile nearby.

Sambro Bridge is a shore-entry reef dive in Halifax Harbour, Nova Scotia, suitable for beginner divers. The site features a reef at depths of 8 to 12 metres, with an average depth of 10 metres. Divers can expect moderate currents and visibility ranging from 5 to 10 metres. Water temperatures fluctuate significantly throughout the year, from 2C in late winter to 16C in late summer, necessitating appropriate thermal protection. Hazards include boat traffic and potential entanglement, requiring the use of a surface marker buoy. Parking is available at the site. Marine life recorded around this area includes various temperate reef fish and invertebrates such as crabs, sea stars, and lobsters.