Approx. 10 Km trek from the base. The whole trek is just awesome. On an average it takes 4-5 hours, and if possible spent one night there and enjoy born fire and sun rise. 70% of the path is just beside the small river, but steep ascent. Temperature is generally low at Lake, so keep some warm clothes with you. Rain is totally unpredictable, so try to keep a rain coat with you . Avoid trekking in monsoon as it is a bit risky that time. In the Kareri village there are so many home stays and Hosteller also, so Friday night you can spent there and then early morning start trekking.