@ bluehorn
yes u can reach deosai on bikes. u can easily reach bara pani from satpar side but from chilam (sheoshar lake) to reach bara apni. u hav to cross a water crossing called kalapani which mayb difficult on bikes. i am trying to upload pics of that place but not able to
well u can just walk across it or take a detour to the left or right to find a narrow path to cross.