Vanuatu is a South Pacific Ocean nation made up of roughly 80 islands that stretch 1,300 kilometers. The islands offer scuba diving at coral reefs, underwater caverns and wrecks such as the WWII-era troopship SS President Coolidge. Hiking trails ascend active volcanoes such as Mt. Yasur. Other popular activities include rainforest ecotours, kayaking and deep-sea fishing, plus relaxing at resorts and spas.