The tour starts high up on the Engerlberger Jochpass(2207m) which can be reached quite easily using the cable-cars and seat lifts from the Engelberg resort. For this familiar with the area in winter the colours make it a whole new experience in summer.
From Jochpass take a right at the top of the lift and follow the wanderweg signs for Engstlensee. The trail starts almost immediately and the view down over the lake is breathtaking. Don't focus too much on the view though as the trail itself requires a certain amount of concentration too. Directly from Jochpass the trail is a great mix of some nice rocky technical challenges with a few switchbacks and some faster flowy sections thrown in for good measure. A perfect start to a long day riding singletrail. (Note, in 2011 the singletrail going directly from the top of the lift at Jochpass was closed to bikes. There is now a bike trail descending to the lake just past the mountainstation of the seat lift coming up from Engstlensee)
From Engstlensee the route goes to Engstlenalp and then climbs quite steeply on a nice section of single trail to Tannalp. This section of trail has some exposure in some areas so care is needed. Its better to push the bike if you are unsure. At Tannalp you will come on to a paved road for a short distance before turning left unto an unpaved road around the eastern side of Tannensee. After about 200m on the unpaved road a single trail veers uphill to your left, take this trail following signposts for Erzegg and Balmeregghorn.
Shortly after Erzegg the trail goes up onto the ridge-line and with a steep drop to both sides. It continues along this ridge to Balmeregghorn. As you ride along this lift you have great views down over the ski area of Melchsee Frutt to your right and Trift Glacier and surrounding mountains to your left.
Countour around the summit of Balmeregghorn past one of the lift stations from Melchsee Frutt and there you will see a wanderweg sign for Planplatten. Follow this trail down a quite technical trail for a short distance. Soon the trail starts climbing again at times quite steep and with some obstacles to get over. There is a fair degree of exposure to the left hand side so if unsure it is best to push you bike for these sections.
At Planplatten the trail turns sharply right and descends into the ski area of Meiringen Hasliberg. The trail starts quite wide but soon narrows down to quite a flowing single trail with some rocky passages and as it contours around the hillside. Follow signs for Häägen and Käserstatt staying on what is an easily ridable single trail which undulates along the mountain side.
From Käserstatt the trail starts to climb again towards Gibel. This trail section is not very technical ascending about 150m. At Gibel veer right following wanderweg signs for Lungern. Here Lungernersee comes into view below and its now a 1100m descent to the train station at Lungern.
On the descent pass west of Horn and follow the trail towards Hüttstett. The trail to Hütstett is at times quite steep and technical, there is an option to turn left before Hüttstett and take a technical trail down to to Lungern or keep going and at Hüttstett take a slightly less technical route which regularly crosses a a paved road down to the train station.