Weekend warriors: adventure beckons in the Brecon Beacons

With abseiling, ziplining over a river, rafting and hikes, a two-night camping adventure in the south Wales national park proves energy-sapping – and boundless funI’m being pelted with water. Dangling from a rope. Slipping. Now spinning. “Move your hand, it’s the only way you’ll get down the rock face,” my guide Paul tells me as I try to work out where I go from here. I shoot down and land in a pool. Graceful, this is not.This abseiling session is just one par