Yama no Susume
Meh, it is short and cute I guess. Not sure how I feel about the whole series... but.. eh I am sure something is ok about it.
Aoi is just a quiet girl who keeps to herself. After she injured herself falling. She has taken up many indoor hobbies and has learned to keep herself entertained. Well that is all going to change as an old childhood friend reappears and forces her back outside to go hiking/climbing with her.