Dive Oahu Scuba Charters -
 Dive in small groups on the major wrecks of Oahu. Equipment rental and basic scuba instruction.
http://www.diveoahu.com

Extended Horizons Scuba Tours -
 Scuba dive charter in Lahaina, West Maui.
http://www.scubadivemaui.com

Hanauma Bay Dive Tours -
 Hawaii snorkeling and Hawaii scuba diving tours at Hanauma Bay Nature Preserve.
http://www.hanaumabay-hawaii.com

Hawaii Scuba Diving -
 Contains information on charter fees, classes, dive site descriptions, and experience levels required for dives on various islands. Photos and information on area sea life.
http://www.hawaiiscubadiving.com/

Hawaii Scuba Diving and Whale Watching Tours -
 Kona based charter service with information on PADI instruction, rate schedules, SNUBA, and an online photo gallery.
http://konahonudivers.com

Hawaiian Rafting Adventures -
Lists information on PADI and TDI instruction, snorkeling tours, whale watching excursions, direct booking, and photo gallery.
http://www.Hawaiianrafting.com

Honu Sports -
 Located in Kailua-Kona with information on dive charters, PADI instruction, kayak rental and contact details.
http://www.honusports.com

Island Divers -
Dive on all sides of the Island of Oahu with five different boats out of five different harbors, small groups. Waikiki, Oahu.
http://www.islanddivershawaii.com