From Blatten, head towards the Fafleralp via Kühmatt, from where you continue on to the snout of the glacier "Langgletscher". The route continues across the Langgletscher, which does particular credit to its name in the length of its ascent, and onward up to the Lötschenlücke at 3,164 metres above sea level. From there, head in a northerly direction to the SAC Hollandia Hut, which lords over the Lötschenlücke like an eagle’s nest.
Stage 2: The tour now heads in a north-westerly direction from the Hollandia Hut over the Äbeni-Flue-Firn to the Anujoch. Possibly carrying your skis on the ridge from this point, depending on snow conditions, continue along the south ridge to its highest point. The summit affords magnificent views down into the valley "Lauterbrunnental" across to the Konkordiaplatz and over to the northern precipices of the Aletschhorn.
Either follow the route of your ascent via the Lötschenlücke and across the Langgletscher back to the Lötschental Valley or, in good conditions, cross the Anugletscher and return to your starting point via the Peter Tscherrig Anen Hut. Depending on snow conditions, the route initially falls for a few metres from the summit down the southern ridge and over the south-western flank (watching out for the shrund) and into the uppermost kettle of the Anugletscher. You can either head down either in the middle of the glacier or along the northerly boundary cliffs between 3,600 and 3,400 metres above sea level. Then descend in a southerly direction below the Grosshorn to the southerly boundary cliffs of the Jegichnubel at 2,800 metres above sea level. To the west of the lateral moraines, the descent then leads over steeper slopes down to the Peter Tscherrig Anen Hut, onward to the Fafleralp and finally down to Blatten depending on the snow levels.