Train Station Lockers

We are planning to go from the airport to Shaffenhausen to see the falls. We will have our luggage with us. Do the train stations, at Shaffenhausen have lockers large enough to hold big backpacks? If the walk to the falls is 30 minutes, what options are there for luggage?

I made use of those locker in Interlaken OST (while visiting Jungfraujoch). I comes in varios sizes, there was 1 that fit a cabin-size luggage, another that fit the 27" luggage and yet a bigger one if I dun remember wrongly. You will find your size. I pay chf5-10 for the medium capacity. These lockers are really useful and I am thankful for that facility.

I will be visiting Switzerland again. I also have another question regarding Rail Baggage. For Standard service, the luggage will arrive at the destined station 2 days later. What if I collect my luggage later then 2 days ? Will I be penalised as in fine for late collection ?

I intend to send my luggage at Lucerne, go to Mt Pilatus overnight without the luggage. Spend another day in Lucerne. The next day go to Lugano via Wiliam Tell Express (lots of transits). Next by bus and Bernina Express to St Moritz(from Lugano, also many transits). As you can see, i am likely to miss my luggage for at least 4 days !