Although I was very amused by the name for some inexplicable reason, Harder Kulm is a paradise for hikers and those looking to have a grand view of the Eiger, Monch and Jungfrau as well as the town of Interlaken flanked by the lakes Thun and Brienz. 1322 meters above sea level, a 10 minute long funicular on the Harder Railway from the Interlaken Ost station gets you to Harder Kulm. There is a playground in order to keep children and even adults occupied and a restaurant that serves delicious local fare. 30 CHF should be enough to get you to and back from Interlaken's home mountain.
Also full of touristy shopping, I bought a whole bunch of souvenirs here. There are other interesting attractions in Interlaken, like the Mystery Park, a paranormal-based theme park, and a daily chocolate show performed by the famous Schuh chocolatier, in which one can see first-hand how truffles, pralines and other delicious chocolates are created. A 'sweet' experience indeed, as one can ask for unlimited free tastings! Before leaving, I bought myself a pack of some famous Lindt chocolates.