I like climbing mountains best.Do you know why?Itmakes me feel relax and excited.Although that will make me feel tired.Doingmore exercise is good for my health.So I climb mountains twice a month.If youclimb mountains top,you will feel the air is fresh.I like the fresh air.To behonest,I was nervous during my first climbing.But I often encourage myself.Ican do it.I like climbing because it’s challenging and can strengthen my will.