Luna Peak is the prominent rock buttress that can be seen when looking northeast from the front deck of Icefall Lodge. The trail to Pyrite Lake contours through forests, meadows and crosses several streams and eventually leads to a flat viewpoint directly across from this 300m cliff.

The trail then descends through wide rock ledges toward the La Clytte stream and crosses it. On the other side, the trail ascends to the looker’s right of the streams coming down from the glacier above and eventually reaches a plateau and a Y junction (2,250m).

The left branch traverses the rocky flats and glacial moraines and makes its way to Pyrite Lake which is the toe of the La Clytte glacier (2,350m) which offers stunning views and is a beautiful spot for lunch and a little rest.