The Maui Ocean Center also offers guided, family-friendly snorkeling tours with a marine biologist to the nearby Olowalu Reef, which is the island's oldest. If you head offshore about an hour's boat ...

Discover the top landmarks in Australia, from the iconic Sydney Opera House and Uluru to hidden gems that will leave you ...

Newly accessible via a Seabourn expedition cruise, the place's very remoteness is a testament to the interconnectedness of all things.

Exclusive photos reveal a sprawling, 300-year-old coral near Solomon Islands, recently discovered by the National Geographic ...

Tropical fish, brilliant coral formations, and a submerged statue of Jesus are among the many wonders at these Florida dive ...