Book an apartment or home
Most rentals are cheaper than hotels. You would either go out for dinner, or cook your own meals. There are large supermarkets in Interlaken that make shopping and cooking part of the fun. There are lots of restaurants in Interlaken as well.
The landlord or rental company will provide a free guest card upon arrival. The card allows free local traveling and discounts on local attractions. If you own a rail pass, you get free traveling in a much wider area and possibly a better discount on attractions.
Find an apartment or holiday home in or near Interlaken. The best price is guaranteed. Please see the e-domizil website: