The Mountaineering Council has warned walkers against crossing waterways after heavy rainfall.
Some rivers and burns can become “impassable” minutes after a downpour, according to the organisation.
Mountain safety advisor Heather Morning said: “The increased rainfall especially noticeable after the dry summer can result in some normal burn and river crossings becoming impassable.
“Even a burn you crossed earlier in the day can have risen to dangerous levels by afternoon and, in remote areas, it’s not always possible to know for sure whether a river or burn crossing will be possible until you get there.
“It is much better to plan ahead than be caught out in a remote location, unable to cross back to the safety of your vehicle, tent or bothy.”
Ms Morning urged walkers to check the weather forecast before setting off.
“If heavy or prolonged rain is forecast, it would be advisable to choose a route that crosses glens at the watersheds or as high up the glen as possible, where the burns are much smaller,” she added.
