Providenciales, often called “Provo,” is the most developed island in the Turks and Caicos archipelago and a gateway to some of the clearest waters in the Caribbean. Its coastline is famous for long stretches of white sand and shallow turquoise seas that seem to shift color with the sun. Grace Bay Beach, the island’s most celebrated shoreline, runs uninterrupted for more than 19 kilometers and is consistently ranked among the best beaches in the world.

Lifou Island, the most populous of the Loyalty Islands in New Caledonia, is a flat, former coral atoll with abundant vegetation and surrounded by secluded coral reefs which many say offer some of the best snorkeling in the world.

Napali Coast State Wilderness Park, located on the northwestern edge of Kauai, is one of Hawaii’s most visually dramatic landscapes. The coastline stretches for 17 miles and is defined by towering cliffs, known locally as "pali," that rise over 4,000 feet above the Pacific Ocean. These rugged ridges are carved by centuries of rainfall and volcanic activity, creating a landscape only accessible by foot, boat, or air.

Formally called Ocean Cay MSC Marine Reserve, Ocean Cay is a private island only accessible to MSC Cruises guests. Activities include beachside lounging, snorkeling, paddle boarding, lighthouse climbing, dining, shopping and more.

Sequoia National Park, located in California’s Sierra Nevada mountains, is a natural wonderland famous for its giant sequoia trees, including the world-renowned General Sherman Tree. Standing at an astonishing 275 feet tall, the General Sherman is the largest tree on Earth by volume and a must-see for visitors.