My wife and I parked and scoped out the entry from a public parking area and decided the surf was too high and the shore too rocky to safely attempt. We had dived Koloa Landing earlier and being strong swimmers (My wife does Ironman races) we decided to try the long swim out from the Koloa entry. The swim out was long, the swim back was tricky as the surf came up and boat traffic increased; there and back again was over an hour total, but the caverns were well worth the effort! The coral was not vibrant but the turtles were plentiful! Sleeping turtles, lots of fish, eels, and the song of humpback whales serenaded us the entire time! We swam through the bigger bridges and tunnels, constantly looking up for whales (and sharks). We would not swim out from Koloa Landing again; I would not recommend it and I feel lucky we even found Sheraton Caverns and had the energy to dive 60', but the site is wonderful!