Arashi Beach is indeed one of my favorite beaches around. I like the water’s calmness, clearness and shallowness. Two days ago I went swimming and snorkeling at Arashi. After swimming I stayed there and just sat for about 1,5 hours, under one of those huts relaxing. Naturally I took the family and we enjoyed ourselves.
In a recent post about snorkeling I specifically wrote that Arashi is a good beach for snorkeling. Maybe I should have been more thorough and added that you need to be close to the corals and rocks to see better underwater life which you will find by Arashi and not at the beach itself.