Carlsmith Beach, known locally as Four Miles Beach isn’t the lavish white sand you picture, but it is still a great beach to swim and explore. The Hawaii Green Seat Turtles like to hang out here and it’s not only possible but likely that you will see them. It offers good snorkeling and a place to watch the sunset.
The water is good for wading and swimming as the big rocks protect the area from the heavy waves. There’s a little island you can also swim out to but be careful! After the lifeguards leave is also a time when the water becomes more turbulent. Once in the water there is a soft sand bottom.
The area also has sheltered lagoons and places to picnic. What more could one want for a relaxing day on the island?