Panorama trail from Maennlichen station to Kleine Scheidegg in Bernese Oberland, Switzerland

You can take the cable car at Grindelwald Terminal to get to Maennlichen station. Here is a playground and a restaurant.
From Maennlichen you can walk in 1,5 hours to Kleine Scheidegg. It is a popular and easy trail (Panoramaweg). The most time you have the Eiger (3967 m), Moench and Jungfrau mountains in front of you. The view is amazing. The famous Eigernordwand (Eiger north face) is about 1800 m high.
At Kleine Scheidegg you can take the train to Grindelwald or Wengen and from there to Interlaken.
Cable cars and trains are expencive in Switzerland.