If you want to ski down the mountainside, you'll need to get to the top of it first. Hop on Triftbahn and enjoy the ride.
You'll have no end of sightseeing choices in Gadmen. Triftbahn is a great place to start here, but there are loads of other fine spots to discover. Melchsee-Frutt Ski Resort, Aare Gorge, and Titlis Suspension Bridge are near the mountainside transportation system and will round out your day nicely.