I would like to share my recent experience and how it effected my kidney function. I hope this post will help you with some decision. :)
I went on 1 night backpacking trip on 3 Oct 2020. It was bit strenuous, carried 32 lbs, gained much elevation in very less miles and stayed overnight with elevation off around 11,500 ft. It was cold, windy and things went worst as no fire/stoves were allowed due to california wildfire restrictions.
I carried 2.5 lt of water while I started and that was only water which I drank while I did backpacking as lake water was very cold and no fire allowed. I reached home Sunday night and had my blood lab completed on Monday (next day). AND MY CREATININE WENT UP FROM 1.05 to 1.4. Called my doctor, had my biopsy done, stayed in hospital overnight. Luckily no damaged found in kidney and my creatinine is coming down slowly. It is back to 1.15. I hope it will go down further like before. FYI, this was not my 1st backpacking trip but yes 1st without fire source.
I learned water is very very important for us. No matter what please drink water.
PS: I completed 9 year kidney transplant anniversary on 19-OCT.
Thank you all.