The climb towards the Kedarnath shrine is steep most of the time, and water and biscuit shops are available on the path. Halfway, there is even a temporary restaurant where you can have your lunch. And make sure you carry less luggage in your backpack, because a cmtinuous 16 km climb will prove the effect of gravity over you mercilessly.
Still, the trek takes you through the magic of the Himalayas. Deep crevises, waterfalls, flowers and trees of unknown names, green mountains, and behind that their elder sisters of snow capped ones.