What are the beach approaching on the nortthern carribean side of costa rica?

please describe if you been within what they are like

Answers: the dampen is crystal clear and shades of aqua... the beaches are severely clean near light colored sand and palm trees everywhere, also you can find a huge mixed bag of shells if you like them, however they aren't as private as they are on the pacific side

what I remember is the black sand, and the driftwood. lots of driftwood.