In reply to pink_hippy:
We got LV premium- covers trekking up to 6000m and rock climbing with a helmet, there is some small print about being supervised or qualified for climbing. I am an instructor so not too bothered about that, but you may want to phone them. Also includes loads of other adventure sports.
Significantly cheaper than BMC/snowcard and includes some very good cover COst us £99for a joint annual premium. Guess you would probably have to pay more to travel for the full year but worth a phone call.