Just grab a route taxi headed for Green Island and have the driver drop you off at the entrance. They will charge and extra 100J each to drive the 100 yards to the beach from the road. When you are done just walk back to the road and hail the next route taxi headed to negril. They have basic bathroom changing facilities. The restaurant may or may not be open. The dogs will bother you to no end, whether you like it or not.

Regards,

Bob