River canyoning in a Winter Activity. It is a highly challenging outdoor adventure activity that involves taking the path of the river down the valley/canyon. It involves trekking over challenging terrain, jumping over rocks, clambering up and sliding down boulders, squeezing through rocks, balancing your way across ridges, swimming across pools of water. Our river canyoning routes take about 8-9 hours. One’s fitness levels need to be very high to attempt this activity. The equipment needed would be comfortable clothing, hiking shoes, a back pack, a flash light and a GPS (optional).