Lewis & Clark State Park Northern Cove is a freshwater snorkel site located on the western reaches of the lake. The topography features seagrass beds that form underwater forests, providing a distinct ecosystem. Snorkellers can expect depths ranging from 1 to 5 metres, with an average depth of 3 metres. Entry is via the shore. Visibility at this site varies between 2 and 10 metres. Summer water temperatures typically range from 15 to 25 degrees Celsius. Due to the potential for boat traffic, cold water, and low visibility, participants should remain cautious while in the water. Facilities available at the park include parking, toilets, and showers.