Two 325-million-year-old ctenacanth shark fossils discovered in Mammoth Cave shed light on ancient marine ecosystems.

As one of La Jolla's seven sea caves, Sunny Jim's Sea Cave is accessible by land via a hand-dug tunnel. In the early 1900s, ...

Kyle Davis, now 38, thought farming near his Hawaiian cave would quench his thirst for adventure. Now he sails the Caribbean hunting for sea glass.

He continues, "I discovered an island made of glass on Aruba, Sea Glass Island, as well as several other beaches practically made of sea glass. In Bonaire, I found underwater caves that are also ...

Hanapepe Beach is a hidden gem for sea glass collectors. It is located on the island of Kauai, known as the "Garden Island" of Hawaii. This beach is not as well-known as other popular beaches like ...

Four Roman swords and the head of a javelin known as a “pilum” were discovered by Israeli archeologists inside a remote cave near the Dead Sea, in an area that was known as a hideout of Jewish ...

Israeli archaeologists show four Roman-era swords and a javelin head found during a recent excavation in a cave near the Dead Sea, in Jerusalem, Wednesday, Sep. 6, 2023.