Often touted as one of the most scenic trails in Engelberg, and with good reason! This fairly easy hike is enjoyed in either direction, starting from the Brunnihutte, or Banalpsee.
From Brunnihutte, follow signs for the Walenpfad trail and Bannalpsee. The trail provides sweeping views of Titlis and the surrounding mountains. The path remains fairly flat for a while, traversing the mountainside towards Walenalp. From here, you'll climb a bit more steeply, but the work is worth it. At the top of this climb the trail takes a sharp right, zigzagging along the mountainside with incredible views. You'll eventually reach a viewpoint for the beautiful Banalpsee far below. Continue following the trail down to the lake, where you have the choice of descending via the Banalpsee cable car (12 euro) or another one nearby.
Be sure to check the bus timetables for getting back to Wolfenschiessen, otherwise it's about another three miles down to town to catch the train back to Engelberg. If you reverse this hike, just catch the train from Engelberg to Wolfenschiessen and then take the 331 bus to Bannalp. You could also make this a more difficult hike by starting or ending in Engelberg (and not taking the cable car).