From Cloud 9 go to GL (General Luna) Plan a trip with a group to the famous lagoon caves (quite expensive) then on the way you'll find a nice point called Rainbows Left! Locals wont know the name...
Its a beautiful relaxing surf spot! there are 3 sections that mostly flows over in eachoter.
Watch out at the end as it can get shallow and smashes against the rock (wall). There is a beach next to it for the girls. make sure your back before dark!!!