From Altdorf head onto the Reussebene plateau in the direction of Attinghausen, and then brace yourself for a steep climb over 1000m up to Brüsti. At the top, you will have a beautiful view of the Reusstal valley and over to the Urner mountains. Head westward through sparse mountain woodland to the ridge trail taking you through meadows to Angistock. This section of airy ridge walk offers a magnificent view over the Urnersee lake, the Gross Windgällen, the Oberalpstock, and the Bristenstock. From here, the mountain trail winds its way over boulder-strewn terrain and snowfields, most of which are still there even in mid-summer, uphill towards the rock faces of the Blackenstock and onto the Surenen pass. Go past the Blackenalp, through an alpine woodland and down to the valley. At the valley floor follow along the Engelberger Aa river to the charming village of Engelberg, famous for its Benedictine monastery.