Columbia River Canyon is a challenging freshwater drift dive requiring advanced skills and precise buoyancy control. Divers navigate depths reaching 19 metres in a powerful current that necessitates boat-based entry to avoid shore surf. Conditions are demanding, with water temperatures ranging from 40°F to the low 70s°F and visibility that can drop to near zero. Divers should be prepared for cold water, potential entanglement, and heavy boat traffic. The site offers an opportunity to experience a high-energy river environment where various temperate freshwater fish and invertebrates are expected to inhabit the water column. A drysuit and torch are recommended for all dives.

The Columbia is a freshwater wreck dive located in the United States, offering a challenging experience for advanced divers. The wreck lies at depths between 8 and 20 metres, with an average depth of 12 metres. Access is via a shore entry, where divers should be prepared for variable currents and cold water temperatures ranging from 46 to 59 degrees Fahrenheit. Visibility typically fluctuates between 10 and 20 metres. Due to the nature of the wreck, divers must manage risks including entanglement, boat traffic, and shifting currents. A local dive shop is available nearby for parking and current condition updates before entering the water.

Canoe Lake is a freshwater muck dive site in the United States offering shore access. Divers can explore depths ranging from the surface to 13 metres. The site features a muck bottom with dense milfoil beds, which require careful navigation to avoid entanglement. Conditions include a mild current and visibility typically between 10 and 15 metres, though this can shift unexpectedly during a dive. Due to the potential for changing visibility and the presence of milfoil, divers should secure all loose equipment and maintain close contact with their buddy. This site is suitable for beginners looking to practice buoyancy control in a low-pressure environment.