In reply to sweenyt:
Bluemlisalphorn Traverse, Kandersteg. Reasonable access from Swiss airports (2.5 hours from Geneva by train? could be done on a fri eve, check timetables?)
Classic AD snow and ice ridge with a few short rocky bits, 3600m so not too high but is does remain at that height for the 3 peaks of the ridge, so it depends how you acclimatise/deal with that. It's as good as the Rochfort Arete but longer, so yes, well worth the trip.
There's a few photos on here and some on summitpost too. It's best done in July in a normal year, though we did it in August last year in very good nick.