If you mean:
"Ami me gusta andar en bicicleta por las montanas"
The translation into English is:
"I like to ride a bike in the mountains"
Translating:
"Ami me gusta" means I like it, or it is pleasing to me
"andar" in this case means to ride (a bike)
"bicicleta" translates to a bike or a bicycle
"las montanas" means the mountains