We will be hiking the Alpine Pass Route staying in inns along the way carrying what we need on our backs. We are also traveling to Italy and France after that and want to have more clothes with us. We would like to bring a suitcase in addition to our backpacks but don't want to carry the suitcase around while we are hiking in the alps.
Is there a way to transport the suitcase from Zurich to the Kandersteg rail station and pick it up 13 days later?
If we can't do that what about using the standard baggage service and sending the suitcase ahead every few days? Can we use this service without having a train ticket(we plan on buying a bernese oberland pass)? We are thinking of checking the luggage in Engelberg and picking it up in Meiringen 2 days later. Then send it from Meiringen to Wengen and pick it up 3 days later. Then send it from there to Murren and pick it up 3 days later and then send it from there to Kandersteg and pick it up 3 days later. Would this work? If you send baggage ahead, how long do they keep it at the rail station before assuming it is unclaimed?