Selong belanak beach

The journey to Selong Belanak from Mataram, Mataram - Selong Belanak about 100 KM. it takes 2 hours to this beach. this Beach have white sand and very fine (like flour), small waves, and with a very beautiful beach because of left and right protected by the hill. But in Selong belanak has a lot of seaweed washed up, little bit dirty in the edge of the beach