Tannery Park is a freshwater dive site located near the mouth of Sixteen Mile Creek in Oakville. This artificial reef features a mix of natural shoreline and man-made structures, offering a transition zone between the creek and the open lake. The site is suitable for intermediate divers, with depths ranging from 1 to 5 metres and an average depth of 3 metres. Divers should expect mild currents and must be prepared for extremely cold water temperatures, which range from 3C to 21C throughout the year. Proper thermal protection is essential to mitigate the high risk of hypothermia. Shore access is available, with facilities including parking, toilets, and showers on-site.

The Jesse Anne is a steel ship wreck located in the Niagara Peninsula, Canada. This site features a flat deck at 18 metres, with the vessel measuring 60 metres in length and 10 metres in width. Divers access the wreck by boat, as it lies approximately 2000 metres from shore. The site is suited for intermediate divers, with depths ranging from 18 to 23 metres. Conditions include mild currents and visibility between 5 and 15 metres. Due to the cold water temperatures, which range from 3 to 15 degrees Celsius, appropriate thermal protection is required. Species recorded around this area include alewife, snails, trout, white sucker, common carp, round goby, and rainbow trout.

The Oakville wreck is a work barge located in the Niagara Peninsula. The vessel rests on a muddy bottom at a depth of 22 metres, with its flat, hard deck situated at 18 metres. This site is suitable for intermediate divers and offers straightforward navigation across the structure. Divers can access the wreck via boat or shore. Conditions include mild currents and visibility ranging from 10 to 20 metres. Water temperatures are consistently cold, typically remaining around 5 degrees Celsius even during summer months. Divers should be prepared for cold water and potential currents. Facilities including air fills, equipment rental, and parking are available nearby.

Coronation Park in Oakville offers a freshwater snorkelling experience along the Niagara Peninsula. The site features a small sandy cove that transitions into a rocky shelf, providing a varied underwater topography. Conditions are generally suitable for beginners, with mild currents and visibility ranging from 3 to 10 metres. Water temperatures fluctuate significantly throughout the year, peaking at 21C during the summer months. Shore access is straightforward, supported by facilities including parking, toilets, showers, and changing rooms. Due to the potential for cold water and surf, appropriate thermal protection and careful monitoring of local conditions are recommended for all visitors.

Rattray Marsh features a unique natural shale beach and a flat stone lakebed at the edge of a significant wetland. This freshwater site is suitable for intermediate snorkellers, offering depths between 1 and 5 metres with an average of 3 metres. Entry is via the shore. Conditions include mild currents and visibility ranging from 1 to 5 metres, which can be affected by organic matter from the marsh. Water temperatures fluctuate significantly throughout the year, reaching up to 21C in summer, though thermoclines can cause temperatures to drop to 4-7C. Hazards include potential entanglement and low visibility. Species recorded around this area include alewife, white sucker, trout, round goby, common carp, and pike.

Jack Darling Memorial Park, specifically the Rocky Point area, offers shore-accessible freshwater snorkelling in Mississauga. The site features a varied topography consisting of sandy patches interspersed with large submerged boulders. The rocky sections located to the west of the main swimming beach are generally preferred for better visibility and higher concentrations of aquatic life. Water temperatures fluctuate significantly throughout the year, ranging from 3C in winter to 21C during the summer months. Species recorded around this area include white sucker, alewife, common carp, round goby, trout, bluntnose minnow, pike, rudd, American crayfish, spotfin shiner, sun perch, and various snails.

Richard's Memorial Park at East Cove offers a freshwater snorkelling experience along the Niagara Peninsula. The site features a rocky headland at the eastern end of the beach, where stone armour and natural lakebed rocks create crevices that attract various fish. Water temperatures fluctuate significantly throughout the year, ranging from 3C in winter to 21C during the summer months. Entry is via the shore, making this a suitable location for beginners. Facilities including parking, toilets, and showers are available on-site. Be aware that conditions can include surf and low visibility. Species recorded around this area include trout, alewife, white sucker, common carp, round goby, sun perch, American crayfish, spotfin shiner, rudd, bluntnose minnow, pike, and small mouth bass.

Bronte Beach Park is a freshwater shore dive site on the Niagara Peninsula featuring a unique shale beach. The underwater topography consists of flat shale ledges and crevices, which were historically formed by stone harvesting for building foundations. Divers should be aware that conditions at this site include strong currents and potential rip currents. Water temperatures fluctuate significantly throughout the year, ranging from 3C in winter months to a maximum of 21C in August. Due to the current conditions, this site is best suited for intermediate divers. Snorkelling is also possible at this location.