"A dramatic natural sinkhole on Long Island famous for its depth — "the third-deepest in the world at 663 feet" — and surrounded by a stunning beach, making it a must-see example of the Bahamas' hundreds of blue holes and underwater cave systems." - Skye Sherman Skye Sherman Skye Sherman is a travel writer based in West Palm Beach, Florida. Aside from traveling, she's also a pilot, scuba diver, bookworm, and fourth-generation Floridian. Her work has appeared in Travel + Leisure, USA Today, Palm Beach Illustrated, Atlas Obscura, and more. Travel + Leisure Editorial Guidelines