mountain ski, acommodation

Hi, we are a group of 5 people we're going to Tromso at Easter. We are going to do mountain skiing. We are looking for cheap accommodation, We may offer to exchange accommodation. We live in San Sebastian, Spain. Also there are places to climb close by here. What do you suggest? Could you help us, please?
Thanks.
Best regards,
Alberto
alonsougartemendia@hotmail.com