Even if you're in fighting shape, walking up steep slopes is hard work. Jump aboard Allmendhubelbahn and get around comfortably and quickly. The views are nicer too!
When you've spent a bit of time at this incline railway in Mürren, why not check out Jungfraujoch, Eiger, and Trummelbach Falls? They're close to Allmendhubelbahn and also a favorite with tourists.