Fiji Resorts for Families: Fiji is the fantasy of the unspoiled tropical paradise. But a Fiji resort seems so far, so out of reach... Think again. Logistics and price may be more manageable than you believe.
Family Adventures in Asia: escorted tours to Viet Nam, China, etc.; all details handled; cultural experiences plus fun such as waterparks.
Gold Coast, Australia: below the Great Barrier Reef is "Surfers Paradise". with 30 km of beaches plus several "funparks" such as Seaworld and Wet 'n' Wild.
Family Cruises: AKA "floating resorts", many cruise ships woo families with extensive kids' programs and lavish facilities such as water parks. Disney Cruises lays on a private island: 1000-acre Castaway Cay in the Bahamas is a stop on all Caribbean sailings, with white sand beach, watersports, bike rentals, kids programs in a play area; teens have their own beach with rope swing, or can sign up for teen activities.
See lots more about family cruises.