Wikipedia https://en.wikipedia.org/wiki/H%25C4%2581lona_Blowhole#H.C4.81lona_Cove
To Hawaii http://www.to-hawaii.com/oahu/beaches/halona-beach-cove.php
Address 8286 Kalanianaole Hwy, Honolulu 96825, United States
Coordinates 21°16'54.053" N -157°40'37.748" E