As road trips go, a group of British adventurers are about to put Thelma and Louise well and truly in the shade.

Steph Jeavons, 44, from Gwynedd, is to lead the first all-female motorcyclist group to Everest base camp.

The 24-strong group, raising money for charities and good causes, will ride to an altitude of 17,000ft (5,200m)

Along the 1,500-mile (2,400km) route, they will tackle narrow dirt roads, stomach-turning drops, extreme weather and altitude sickness.