Map of Rush Lake Trek
2144 by Mobeen Mazhar, on Flickr
Important Notes
1- Water availability is an issue on this trek so keep enough water bottles with u at start as refill can only be done at Barichokor, Usaimal or Rush Lake. Lots of water, tang, energile etc. is required on this trek since conditions are very dry and rough with no shade and hardly any grass.
2- You have to be physically fit to do this trek as it is very demanding specially day 2 and 3 were very tough. Better to do it in 6 days which will give more time to acclimatize and less stress on body.
3- Porter charges are highest i have experienced so far. But trek is also very tough.
4- Needless to say, prepare very well for cold weather at Rush Lake as it is 15,400 ft ASL. It was frost all around during night and even till 8 a.m. it was still melting.
5- Porters can make chapatis on route so no need to carry prepared stuff. Just take some flour with u and they will handle the rest.
6- Give yourself some time at the top to adjust to thin air as i also needed 2-3 hours to adjust and then i went out to roam around 
7- If weather is hot then start as early as possible to avoid sunshine as in this area sunrays were very pinching.
8- I used very slow but consistent speed on all the steeper climbs and my time was quite good so don't hurry into the climbs as these are quite long.
9- Rush Pari peak is not a big deal if u can reach Rush Lake without any issue. I didn't have time due to sunrise approaching very fast and only did half climb till a mid peak to capture views all around but it is boulder climb at reasonable angle and a slow pace will take u to the top in 1.5-2 hours.
10- Avoid descending from Phai Pheri side unless u want to experience the adrenaline rush 
It hardly takes 1-1.5 hours from Barichokor to the glacier crossing point if u want to go to Miar and Hamdar side.
11- Porters can stay in Usaimal houses or provide them plastic sheets at Rush Lake as there are roofless walled structures at the lake side but they need cover from above to avoid frost and rain.
12- Take lots of pics whenever u go
