Boughton Island Southern Ledges features rugged rocky ledges extending from the southern tip of this uninhabited island. Located 1500 metres from shore, the site is accessible by boat or via a long hike at low tide. Depths begin at 2 metres and vary across the reef structure. Conditions are variable, with potential hazards including cold water, rip currents, surf, boat traffic, entanglement risks, and sea urchins. Due to the challenging environment and potential for strong currents, this site is best suited for intermediate snorkelers. Water temperatures fluctuate significantly throughout the year, ranging from -1C in late winter to 20C in August.

Boughton Island features shallow sandbars and surrounding reefs located 1500 metres from the shore. This site is suitable for advanced divers and snorkellers, with depths ranging from 1 to 5 metres and an average depth of 3 metres. Access is possible via boat or by hiking at low tide. Conditions are characterised by cold water temperatures, which fluctuate between -1C and 20C throughout the year. Divers and snorkellers should be aware of strong currents and surf conditions. The site is uninhabited and offers a typical dive duration of 60 minutes.

Sally's Beach at Spry Point features red sandstone formations that create interesting underwater topography for snorkelers. This site offers shallow, calm waters with an average depth of 3 metres, ranging between 1 and 5 metres. It is a shore entry site suitable for beginners, though snorkelers should be aware of potential surf conditions. The water temperature varies significantly throughout the year, peaking at 20C in August and dropping to -1C in late winter. Typical sessions last around 45 minutes. The area is well-suited for observing tidal pool life and shellfish in a relaxed, shallow environment.

Durell Point Ledges is a rugged snorkeling site on the Nova Scotia Eastern Shore defined by high red sandstone cliffs and rocky underwater terrain. The site is suited for intermediate snorkelers due to moderate currents and the presence of surf. Water temperatures are cold, typically ranging from -1°C to 20°C, though they often remain between 7°C and 8°C during summer months. The habitat supports a variety of temperate marine life, including various reef fish and invertebrates typical of the region. Nearby barrier-beach lagoons offer calmer conditions for exploration when the open strait experiences rougher water.

Panmure Ledge on the Nova Scotia Eastern Shore offers shallow reef diving directly below the historic lighthouse. The site features rocky shoals that contrast with the surrounding sandy beach, providing a habitat for various temperate marine life. Divers and snorkellers can expect depths between 3 and 6 metres, with an average of 4 metres. Conditions are cold, with water temperatures ranging from -1C to 20C, making dry suits necessary for most of the year. Entry is from the shore, though divers should be aware of moderate currents and potential surf. Facilities at the site include parking, toilets, showers, changing rooms, and a cafe.

Seal River Bridge on the Nova Scotia Eastern Shore serves as an artificial reef site, centred on the rocky foundations of the bridge structure. This shore-entry location is suitable for beginners, with depths ranging from 5 to 7 metres and an average depth of 6 metres. Divers and snorkellers should be prepared for moderate currents and surf conditions. Visibility typically fluctuates between 3 and 5 metres. Water temperatures vary significantly throughout the year, ranging from -1C in late winter to 20C in August. A typical dive duration at this site is approximately 50 minutes.

East Isle Shipyard is an industrial site featuring a submerged iron cradle and rail system from a former shipyard. This structure serves as an artificial reef within the deep harbour waters of the Nova Scotia Eastern Shore. The site is accessible from the shore and is suitable for intermediate divers and snorkellers. Depths reach up to 7 metres, with typical dives lasting around 40 minutes. Water temperatures fluctuate significantly throughout the year, ranging from -1C in winter to 20C in August. Divers and snorkellers should be aware that visibility can be low at this location.

Georgetown Harbour at Tranquility Cove is a shallow reef and artificial reef site located 100 metres from the shore along the Nova Scotia Eastern Shore. With depths ranging from 1 to 8 metres and an average of 4 metres, it is suitable for beginners. Access is by boat only, and divers should remain aware of local boat traffic. The site features a diverse habitat supporting various temperate marine life, including crustaceans, molluscs, and bottom-dwelling fish. Water temperatures fluctuate significantly throughout the year, reaching up to 19C in August. The area is also known for shallow-water snorkelling, where visitors can observe the local ecosystem.