For a unique and secluded beach experience, drive past the Hyatt Regency until Poipu Road becomes a bumpy dirt road.  After passing a stable, keep driving until you reach an intersection where you'll make a right turn. Park with the few other cars you'll see after you pass the sign for Mahaulepu Beach, one of Kauai's hidden gems.  This is the beautiful and unspoiled beach where George C. Scott played Ernest Hemingway in the 1977 movie Islands in the Stream.