From Honolulu: Take H1 west to the Campbell Industrial Park exit (exit 1). You will loop over the highway heading makai on Kalaeloa Blvd. Take this all the way to the end. You will enter a warehouse-industrial area. Turn right on Olai. Do not worry about the "dead end" sign. Olai leads to Barber's Point Beach park, a left turn. You will see the bathrooms and a lawn area as you approach. The OPIHI intertidal is just to the left of the jetty, straight out from the parking lot.