In reply to Stujbro: There used to be one by the station which is the only official campsite in Zermatt I think. It was fairly noisy, especially in the morning when the trains got going and I think there was a plan to build there. Ten minutes walk to the Gornergrat railway station. Otherwise you can camp down the valley at Tasch, Attermanze I think and get a shuttle up to Zermatt.