Port Darlington West Beach is a freshwater snorkel site in Ontario, Canada, featuring a mix of sandy stretches and submerged rocky outcrops. Suitable for beginners, the site offers an average depth of 3 metres, with a range between 1 and 5 metres. Access is via a shore entry, though snorkelers should be aware of moderate currents and potential surf conditions. Water temperatures fluctuate significantly throughout the year, ranging from 3C in winter to 21C in August. Parking facilities are available for visitors. The site provides an opportunity to observe the local lake ecology in a shallow, accessible environment.

Darlington Provincial Park Main Beach offers a freshwater shore dive along the shores of Lake Ontario. The site features a sandy beach with rocky bottom structures located near the eastern and western bluffs. Divers can expect depths ranging from 2 to 8 metres, with an average depth of 5 metres. Conditions include moderate currents and visibility typically between 5 and 15 metres. Due to water temperatures ranging from 3C to 17C, a wetsuit is recommended. The site is suitable for beginners, with typical dives lasting around 45 minutes. Hazards include cold water and surf. Facilities available at the park include parking, toilets, showers, changing rooms, and a rinse station.

Lakeview Park Beach in the Niagara Peninsula offers a sandy shore entry into Lake Ontario. This site is suitable for beginners, with depths ranging from 1 to 5 metres and an average depth of 3 metres. Snorkellers should be aware of moderate currents, surf, and the potential for low visibility, which typically fluctuates between 2 and 8 metres. Water temperatures vary significantly throughout the year, ranging from 4C to 21C, with comfortable conditions for swimming and snorkelling generally limited to the summer months between July and September. Facilities at the beach include parking, toilets, showers, a rinse station, and first aid services.

The P.B. Locke is a shipwreck site located 3000 metres offshore in Lake Ontario. Divers can explore the wreck at depths ranging from 18 to 24 metres, with an average depth of 21 metres. Access to the site requires a boat. Visibility at the site varies significantly, ranging from 3 to 15 metres, and currents are generally mild. The site is suitable for intermediate divers. Due to the nature of the wreck, entanglement is a potential hazard. Water temperatures are cold, fluctuating between 2 and 14 degrees Celsius throughout the year. Night diving is permitted at this location.

The P.B. Locke is a 136-foot schooner built in 1873 that later served as a stone-hauling barge before sinking in a storm in 1912. Located 3000 metres from shore in Lake Ontario, this wreck site is accessible only by boat. The structure is significantly broken up, yet divers can observe the anchor, the ship's bell, a stove, and various tools and dishes. Depths range from 5 to 24 metres, with visibility between 3 and 15 metres. Conditions include mild currents and a thermocline. Due to the depth, cold water, and entanglement hazards, this site is suitable for advanced divers. Night diving is permitted.

The Ganaraska River Mouth at the outer pier offers a freshwater snorkelling experience where the river meets Lake Ontario. This site features an artificial reef structure along the western pier. Snorkellers should be prepared for moderate currents and variable visibility, with water temperatures ranging from 3C to 22C throughout the year. The site is best suited for intermediate snorkellers due to potential hazards including boat traffic, cold water, and strong currents. Species recorded around this area include trout, common carp, round goby, white sucker, small mouth bass, and alewife. Access is via the shore, with parking and toilets available nearby.

Kiwanis Heydenshore Park offers a shore entry from a pebbly beach, leading to a rocky bottom that functions as both a natural and artificial reef. This site is suitable for beginners, though divers must navigate mild currents and potential hazards including boat traffic, entanglement, and low visibility. Water temperatures fluctuate significantly throughout the year, ranging from 4°C in winter to 21°C in August, presenting a risk of hypothermia. Species recorded around this area include snails, alewife, brown bullhead, round goby, common carp, white sucker, pike, common perch, rainbow trout, and trout. Facilities at the park include parking, toilets, showers, changing rooms, a rinse station, and a cafe.

Rotary Sunrise Lake Park at Lighthouse Point offers shore access to a rocky substrate near the Port Whitby pier. This site provides depths ranging from 2 to 10 metres, with an average of 6 metres. Visibility typically varies between 3 and 10 metres, often exceeding that of nearby sandy beaches due to the rocky bottom. The site is suitable for beginners, though snorkellers should remain aware of local boat traffic. Species recorded around this area include alewife, snails, common carp, brown bullhead, round goby, common perch, rainbow trout, pike, trout, and white sucker. Facilities at the park include parking, toilets, showers, and changing rooms.