Daytime is safe at all Nassau/PI beaches as all the jetski's and boats, etc scare off any predators, However DO NOT go in the water at night! -ever. Sharks come in to sleep in the shallows, even in the harbour at night, but usually leave before sunrise.

While you physically can swim in the ocean at night in the Bahamas, it is generally discouraged by locals and safety experts due to several environmental and biological risks. The primary concern is the presence of nocturnal predators; many shark species, including tiger sharks and bull sharks common in Caribbean waters, become much more active and move closer to shore to hunt during twilight and nighttime hours. In the dark, the silhouette of a swimmer can easily be mistaken for prey. Furthermore, visibility is nearly zero, making it impossible to see hazardous marine life like stinging jellyfish, sea urchins, or sharp coral formations that could cause injury. There is also the significant risk of currents and "rip tides" which are harder to detect and navigate without visual landmarks on the shore. If you do choose to swim, it is best to stay in well-lit, shallow areas of a resort beach where lifeguards or security may be present, but even then, the official recommendation is to enjoy the water during daylight hours when you can fully perceive your surroundings and any potential threats in the crystal-clear Bahamian water.