Trek to Rush Lake starts from Hopar Glacier, early morning start is recommended to get to first Campsite i.e. Badichakor. After crossing Bulatar and Barpu Glacier in a span of 3-4 hours, a hike/walk of two hours in a meadow along the lateral side of Barpur Glacier brings you to Badichakor. This part of trek is relatively green with a backdrop of Spantic Peak.
Again a early morning steep hike of 4 hours from Badichakor, brings you to Chidin Harai, this part is quite strenuous due to a dry path climbing for about 1150m, with equally rewarding views of Ultar in the North and Miar Peak / Glacier in the west.
Chindin Harai has a reliable water source and it an ideal campsite with a small Shepard hut. A hike of 2-3 hours brings you to Rush Lake, this portion although relatively less steep, but high altitude can cause shortness of breath.
Best season to visit is from May-September.