Miminegash Breakwater on the Kouchibouguac Coast offers a unique artificial reef environment for snorkelers. The site consists of submerged rocks forming the pier structure, which provides a stable habitat for dense clusters of Irish Moss and kelp. Snorkelers can explore the crevices of the breakwater to observe crustaceans and small fish. Due to the variable water temperatures, which range from -1C in winter to 20C in August, this site is best suited for intermediate snorkelers. Access is via a shore entry. Conditions at this location are subject to change, and visitors should be prepared for the temperate climate of the Gulf Coast.

Miminegash is a shallow coastal site located just north of the harbour entrance along the Kouchibouguac Coast. The topography consists of a mix of sandy and rocky areas, which support an underwater forest of red and purple seaweed. This site is accessible from the shore and is suitable for beginners, though conditions vary significantly. Snorkelers should be aware of hazards including cold water, low visibility, surf, and strong currents, including rip currents. Water temperatures fluctuate throughout the year, ranging from -1C to 20C, with the site often being unsuitable for in-water activity during colder months due to freezing conditions.

Miminegash Reef is a natural rocky formation situated just offshore from the harbour. Accessible via a short swim from the shore or by small boat, the site features a distinct rocky topography that supports mature seaweed ecosystems. Water temperatures at this location fluctuate significantly throughout the year, ranging from -1C in the winter months to a peak of 20C in August. Due to the variable conditions and the nature of the coastal environment, this site is recommended for advanced snorkellers. The reef provides a different habitat compared to the immediate shoreline, though specific marine life observations are not recorded for this location.

Cascumpec Bay is a shallow, protected marine site along the Kouchibouguac Coast, offering a calm environment for snorkelling. The topography consists of seagrass meadows and active oyster beds, which define the local ecology. With an average depth of 3 metres and a range of 1 to 5 metres, the site is suitable for beginners. Entry is via the shore. Water temperatures vary significantly throughout the year, reaching up to 20C in August, which supports the growth of oysters. Facilities at the site include parking and a cafe.

Jacques Cartier Provincial Park Beach, located on the Kouchibouguac Coast, offers a shallow shore-entry snorkeling experience suitable for beginners. The site features a mix of sand and rocky patches, with depths ranging from 1 to 5 metres and an average of 3 metres. Snorkellers should be aware of moderate currents, surf, and potential rip currents in the area. The Northumberland Strait is noted for having some of the warmest ocean temperatures in Canada during summer months, peaking at 20°C in August. The habitat supports a variety of regional marine life, including various invertebrates and fish species typical of the Gulf Coast environment.

Skinners Pond Wharf Ledges in Kouchibouguac National Park features a combination of sandy flats and man-made rock structures. The site includes the wharf and the mouth of the pond, where rock armour provides shelter for lobsters and crabs. Snorkellers should be aware that this is an intermediate site with mild currents and potential hazards including surf and rip currents. Water temperatures are very cold, often remaining below freezing for much of the year. Access is available from both shore and boat. Due to the challenging environmental conditions, this site is rated 2/5 for snorkelling.

Skinner's Pond Beach in Kouchibouguac National Park offers a shallow marine environment featuring a mix of sandy and rocky substrates. This site is suitable for beginners, with depths ranging from 1 to 5 metres and an average depth of 3 metres. Snorkellers can explore the area near the historic fishing wharf and the breakwater. Access is via a shore entry. Conditions vary, with visibility typically between 3 and 10 metres and mild currents present. Be aware that rip currents are a potential hazard at this location. Water temperatures in this part of the Gulf of St. Lawrence are very cold, often remaining near or below freezing.

Jacques Cartier Shoreline Fortifications on the Kouchibouguac Coast offers a unique dive experience centred on stone fortifications and gravelly patches that contrast with the surrounding sandy bottom. This site is suitable for beginners, with shore access and typical dive durations of 30 minutes. Divers should be prepared for variable conditions, as visibility ranges from 2 to 8 metres and water temperatures fluctuate between -1C and 19C throughout the year. Low visibility is a noted hazard at this location. On-site facilities include parking, toilets, showers, changing rooms, and a rinse station. Snorkelling is possible but rated 2 out of 5.