Oahu Vacationers Useful Links You have options while visiting and below are some useful links for Oahu vacationers. Current Weather Conditions Honolulu International Airport Honolulu Bus Information Public Announcements & Events Shuttles & Tours Oahu Hiking Trails National Park Services Phone Numbers The area code for the state of Hawaii is (808). Oahu Visitors Bureau: (808) 524-0722 Marriage License and Civil Unions: (808) 586-4545 Honolulu International Airport Visitor Information: (808) 836-6413 Camping Permits: (808)...