Before revision: Hazards that may be present in slot canyons include falling rocks, unsteady terrain, narrow slots, slippery surfaces, blockages, steep descents and ascents, potholes, whirlpools (siphons), cold water, duckunders, long swims, fast flowing water, and flash URL The consequences of falling victim to these hazards can be exacerbated by the difficulties or dangers rescue teams can experience accessing canyons or canyon regions.
After revision: Hazards that may be present in slot canyons include falling rocks, unsteady terrain, narrow slots, slippery surfaces, blockages, steep descents and ascents, potholes, whirlpools (siphons), cold water, duckunders, long swims, fast flowing water, and flash URL The consequences of falling victim to these hazards can be exacerbated by the difficulties or dangers for rescue teams accessing canyons or canyon regions.