Casco Bay Island in the Bay of Fundy is a boat-access site featuring a steep underwater wall, reef structures, and drift diving opportunities. The site reaches depths between 9 and 78 metres, with an average depth of 15 metres. Conditions are challenging, characterised by strong currents, rip currents, and low visibility ranging from 3 to 6 metres. Water temperatures remain cold throughout the year, fluctuating between 3C and 7C. Due to the demanding current and depth profile, this site is suitable for advanced divers only. Typical dives last approximately 30 minutes.

Pollock Cove in the Bay of Fundy offers a shore-accessible dive featuring rocky reef structures and kelp forests. Located 50 metres from the shore, the site reaches depths of 5 to 12 metres, with an average depth of 8 metres. Divers should expect cold water temperatures ranging from 4C to 13C, necessitating the use of a drysuit or thick wetsuit. Conditions include mild currents and visibility between 3 and 9 metres. Hazards at this location include boat traffic, cold water, entanglement risks, low visibility, and surf. The site is suitable for intermediate divers, with typical dive times around 45 minutes. Facilities available nearby include parking and a cafe.

Head Harbour Crossing is a rocky channel located between the main island and the lighthouse islet, accessible only at low tide. This advanced shore dive features a rugged underwater landscape and is subject to strong currents, requiring careful planning around slack tide. Water temperatures are cold, ranging from 4C to 14C, making a dry suit essential for all divers. Species recorded around this area include harbor seals, gray seals, lumpfish, common lobsters, rock crabs, and various sea stars. Snorkelling is possible with a rating of 3/5, though conditions remain challenging due to the current and surf. Parking is available near the site.

English's Bar Beach in the Bay of Fundy offers a rocky reef environment suitable for intermediate snorkelers. Access is via the shore, where snorkelers encounter moderate currents. The site is characterised by cold water temperatures ranging from 4C to 14C throughout the year, necessitating the use of a drysuit or thick wetsuit. Hazards at this location include cold water, surf, and sea urchins. The site is best suited for those comfortable with temperate marine conditions and rocky intertidal topography. Due to the variable nature of the currents and the cold water, appropriate thermal protection and experience with shore entries are required for a safe visit.

Cancat Beach in the Bay of Fundy offers a challenging shore-entry experience featuring a reef system and a dramatic wall. The site is suited for advanced divers due to strong currents, down currents, and surf conditions. Visibility is limited to approximately 3 metres, and the water temperature ranges from 3C to 14C, necessitating the use of a dry suit. The topography includes rocky ledges accessible at low tide. Divers should be prepared for cold water and the presence of sea urchins. Parking is available at the site. Typical dives last around 30 minutes.

Deer Island Point is a reef and wall site located at the southern tip of Deer Island near the Old Sow whirlpool. This site is suitable for advanced divers and snorkellers due to strong currents and deep water. Access is via the shore, and activities must be strictly timed to slack tide to avoid dangerous conditions. Visibility is limited to approximately 3 metres. Water temperatures fluctuate between 3C and 17C throughout the year, presenting a significant hazard of cold water shock. Facilities available at the site include parking, toilets, showers, changing rooms, air fills, equipment rental, a cafe, and guided tours.

Mill Cove in the Bay of Fundy is a sheltered site featuring a pebbled beach and a sandy bar. This shallow environment, with depths ranging from 1 to 5 metres and an average of 3 metres, provides a calm setting for snorkelling. The site is suitable for beginners, though conditions vary with visibility typically between 5 and 10 metres. Water temperatures are cold, fluctuating between 4C and 14C throughout the year. Access is via a shore entry. Divers and snorkellers should remain aware of potential hazards, including boat traffic, entanglement risks, and periods of low visibility.

Kelly's Cove in the Bay of Fundy offers a rocky reef and wall environment accessible from the shore. Located near the Deer Island ferry, the site features depths starting at 9 metres. Conditions are challenging, with strong currents and surf, making this an advanced dive location. Visibility typically ranges between 3 and 6 metres. Water temperatures are cold, fluctuating between 4C and 14C throughout the year, necessitating the use of a dry suit. Divers must be aware of potential entanglement hazards and the site's high tide dependency. Snorkelling is possible with a rating of 4/5, though it should only be attempted during slack tide to avoid dangerous currents.