Yes, you can, and it is home to one of the most famous open-water swimming events in the Caribbean. The distance across "The Narrows"—the strait separating the two islands—is approximately 4.1 kilometers (2.5 miles). In 2026, the annual Nevis to St. Kitts Cross Channel Swim is scheduled for March 28th, celebrating its 25th anniversary. The race typically starts at Oualie Beach on Nevis and finishes at Cockleshell Bay on St. Kitts. The water is relatively shallow, allowing swimmers to see the seabed, sea turtles, and stingrays along the way. While the distance is manageable for experienced swimmers, the "Narrows" can have tricky currents and choppy conditions depending on the wind. For those not participating in the official race, private guided swims can be arranged in 2026 through local operators, provided you have a safety boat escort, which is legally and practically mandatory due to boat traffic and changing sea conditions in the strait.