One day we went on a short hike around the valley and through the farm lands to the volcano observation station. It was absolutely beautiful to be walking out there among the fields of cabbage, peppers, onions, carrots, potatoes, etc. Apparently the volcanic soil is great for growing all sorts of things (yes, the largest mountain there in the area was formed by a volcano, but the most recent volcanic activity was in the 1970's, I believe).