Barn Marsh Beach in Nova Scotia and the Bay of Fundy offers a challenging environment for advanced snorkelers. Access is via a steep 30-metre metal staircase descending from the lighthouse cliff. The site features rocky reef topography, including unique rock formations and kelp forests that are exposed during low tide. Snorkeling is limited to high tide, though conditions are often affected by low visibility due to silt. Divers and snorkelers should be prepared for cold water temperatures ranging from 2C to 16C, as well as moderate currents and surf. Parking is available at the site.

Upper Salmon River in Passamaquoddy Bay offers a unique river snorkeling experience within Fundy National Park. The site features river pools with an average depth of 6 metres, though depths can vary. Access is via the shore, and the site is suited for advanced snorkelers due to the presence of moderate currents and surf. Water temperatures fluctuate significantly throughout the year, ranging from 2C in February to 16C in September. Facilities at the location include parking and toilets. Participants should be prepared for the specific environmental conditions of this riverine setting.

Herring Cove Beach in Passamaquoddy Bay is a rugged site featuring rocky outcrops and tide pools. Snorkellers can explore the intertidal zone, ideally during high tide slack water. The site is suitable for beginners, though conditions are challenging due to strong currents, surf, and potential rip currents. Water temperatures are consistently cold, ranging from 2C to 16C, with the most temperate conditions occurring in July and August. Visibility typically fluctuates between 3 and 10 metres. Divers and snorkellers should be aware of hazards including sea urchins and sharp rock formations. Facilities at the site include parking and toilets.

Black Hole is a deep river pool located in Passamaquoddy Bay, Canada. This site serves as the primary location for the Snorkel with Salmon program. Access to the water is via the shore. Given the water temperatures, which range from 2C to 16C throughout the year, appropriate thermal protection is required. The site is rated for intermediate snorkellers due to the nature of the river environment. As a deep pool, it provides a specific habitat for local aquatic life. Divers and snorkellers should be prepared for cold water conditions when visiting this location near Alma.

The Green Pool on the Kouchibouguac Coast is a freshwater basin fed by a waterfall. The site features a distinct green pool that offers higher visibility than the surrounding bay. Divers and snorkellers can access the site from the shore, with the pool reaching depths of up to 6 metres. Located 500 metres from the shore, the site is suitable for intermediate divers due to the presence of moderate to strong currents. Water temperatures are cold, ranging from 2C to 16C throughout the year, and can remain low even during warmer months. Facilities at the site include parking and toilets.

Bennett Lake is an artificial reef site located in Passamaquoddy Bay, Canada. It provides a controlled environment for snorkelling, serving as a calm alternative to the more turbulent waters of the Bay of Fundy. The site is accessible via a shore entry and is well-suited for beginners. On-site facilities include parking, toilets, changing rooms, and showers to support visitors. While the site is rated 2/5 for snorkelling, it offers a stable, shallow area for those looking to explore the underwater structure. Divers and snorkellers should be prepared for variable conditions typical of this marine environment.

Wolfe Lake is a quiet freshwater site situated in the highlands near Passamaquoddy Bay. This location offers a peaceful environment for snorkelling, with high water clarity allowing for the observation of freshwater aquatic plants and small fish species. Access to the water is via the shore. The site is suitable for beginners, though conditions such as water temperature and visibility can vary. Facilities available at the site include toilets, changing rooms, and parking. Snorkelling sessions typically last around 45 minutes. As a freshwater environment, the site does not feature marine hazards such as sharks, coral, or jellyfish.

Laverty Falls Pool is a shallow basin located at the base of a 12-metre curtain waterfall. Accessible via shore entry, this site is suitable for beginners interested in snorkelling. The water temperature remains cold throughout the year, ranging from 2°C in late winter to 16°C in September, making extended swimming uncomfortable without thermal protection. Divers and snorkellers should be aware of the cold water conditions. The site features unique geological formations underwater. Facilities available at the location include parking and toilets.