Poipu

If you ever make to kauai definitely head to Poipu and go down to the very end of Ainoku rd. off Poipu rd. and park your car to head down to the beach, which if you take a left there will be a very cool trail that intertwines itself with other trails that lead down to cliffs over hanging the water, don't recommend jumping unless you think your clear of rocks, and also heads east past a golf course to a secluded beach that no one is at unless someone beats you to it. Beautiful place to spend the morning to afternoon!