Himalayas

Two amputees are hoping to become the first disabled people to finish a 350km walk across the Himalayas known as the "toughest trek in the world".

Erosion from a river network about 75 km from the mountain is carving away a substantial gorge, causing it to rise up by as much as 2 mm a year.

Northern Ireland man Noel Hanna died while descending Annapurna I in the Himalayas