Heading northwest, the route follows the Lauteraar Glacier, crossing the Lauteraarsattel (3,125m) before traversing the Upper Grindelwald Glacier and descending to the Gleckstein Hut.
Along the way, the group will visit the Gleckstein bivouac, which was used before the first hut was built in 1880. As W.A.B Coolidge explained in his "Swiss travel and Swiss guide books", published in 1889, "for many years the only shelter at the south foot of the Wetterhorn was under the great boulder known as the Gleckstein".
Camping at the spot in 1854 during his famous ascent of the Wetterhorn, Sir Alfred Wills took a bath in a nearby glacial stream that "was icy-cold, but did me more good than a weary night in the hole."
Less than 30 years after the hut was built, Europe's first cable car began operation, connecting Grindelwald with the trail below the hut. For a few years during the Belle Époque, the hut's status was upgraded to hotel.