Australia's East Coast is home to some legendary beaches—Whitehaven Beach in the Whitsundays is particularly heavenly. Over on the West Coast, Turquoise Bay in the Cape Range National Park is equally gorgeous. Just watch out for those sharks.
Walk the jungle tree tops in Costa Rica. Arenal Hanging Bridges, Costa Rica - A three kilometer hike through the Costa Rican rain forest. There are six suspension bridges, with the largest one at just under 100 meters long and 45 meters off the ground.