On the island of St. Kitts, you can witness the dramatic meeting of the Atlantic Ocean and the Caribbean Sea. Because St. Kitts is a long, narrow volcanic island, it acts as a literal divider between these two bodies of water. If you visit the Timothy Hill Overlook in 2026—a must-do for any traveler—you can see the turbulent, deep-blue waters of the Atlantic on your left and the calm, turquoise, crystal-clear waters of the Caribbean on your right. The two waters have distinct temperatures and wave patterns, creating a visible "line" where they converge at the narrow peninsula known as the Southeast Peninsula. It is one of the few places in the world where you can stand in one spot and clearly see two different "personalities" of the sea at the same time, separated by only a few hundred meters of lush, green land.