ReefTrekkers - Provides dive tours, advanced and refresher dives, and certification classes. - http://www.reeftrekkers.com
Diamond Head Divers - Scuba diving tours, instruction and certification. Images, course descriptions and rates. - http://www.diamondheaddivers.com/
Oahu Dive Center - Offers diving charters and instruction, snorkeling tours and beach rentals. - http://www.oahudivecenter.com/
Dive Hawaii - Diving for the beginners and advanced divers near Hanauma Bay. Pictures, dive sites, tour prices and descriptions. - http://www.scuba-hawaii.com/
Captain Bruce's Scuba Charters - Dive boats at East and West Oahu: charters, instruction, introductory dives, and snorkeling, plus related links. - http://www.captainbruce.com/