About This Dive Site
Lake Minnewanka Townsite Area in Banff National Park offers a unique scuba diving experience, exploring the submerged remnants of the historic Minnewanka Landing townsite, flooded by dams in 1912 and 1941. Sites include House Foundation #1 at 17.5 meters (57 feet), Fireplace-Oven and Cellar at similar depths, and Sidewalk and Cellar features. Located 1450 meters above sea level, this is a cold-water altitude dive with depths varying seasonally, rising up to 5.5 meters (18 feet) from spring to fall. Access requires a boat due to the offshore location 120-200 meters from shore. Visibility fluctuates from 5-15 meters based on season and diver traffic. Follow Parks Canada guidelines: scuba diving permitted only at Lake Minnewanka and Two Jack Lake.
Safety Considerations
Prioritize aquatic invasive species (AIS) prevention; all gear must be cleaned, drained, dried for 48 hours, and certified with a new AIS Prevention Permit for each waterbody (Parks Canada protocol). Plan for altitude diving using PADI or DAN altitude tables to adjust no-decompression limits, as elevations over 1000 meters increase decompression sickness (DCS) risk. Water temperatures hover at 4-10°C (39-50°F) year-round, demanding thermal protection to prevent hypothermia. Heavy boat traffic from fishing makes surface awareness critical; use a dive flag and surface marker buoy (SMB). Low visibility and silty bottoms heighten navigation hazards; dive with a buddy, compass, and light. Obtain advanced open water certification; REI recommends drysuit training for these conditions. No currents, but depths to 17.5 meters require advanced buoyancy control to avoid stirring silt.
Essential Gear
Pack a 7mm neoprene wetsuit or drysuit (brands like Waterproof or Scubapro), altitude-adjusted dive computer (Shearwater Peregrine), redundant regulators (Aqua Lung), 12L steel tanks for cold gas expansion, SMB, dive flag, weights for drysuit (add 4-6 lbs), hood, gloves, boots, reel and guideline for penetration dives into basements, first aid kit with oxygen (DAN standards), and AIS cleaning supplies.