I reviewed this site 3 years ago and feel I have to give Olowalu a new review after finally diving the site properly. The key is entering the correct spot and good navigation skills. The easiest entry is found exactly at mile marker 14. Find the sign and walk out. You will be able to see the bright blue sand path through the coral channels. Follow this out and when this channel seems to end, just swim over the channel blocking corals and you'll start a new channel. The fish life here is quite impressive. This is the best place I have seen to see several variety of parrot fish and wrasse. There is also a turtle cleaning station and plenty or turtles around. There have been tiger shark sightings here and I have been told to avoid this site when the water is murky. The bigger threat is the popularity of this site with snorkelers. This site is featured in all the guide books and the beach and surface can get a little crowded if you are snorkeling.