They may cause a parasitic infection called tungiasis (sand flea disease) that can lead to severe inflammation and skin lesions (wounds). Chigoe fleas are typically in tropical climates such as Central America, South America, Africa, the Caribbean and the West Indies. They're rare in the U.S.

Yes, sand fleas—also known locally as "no-see-ums," beach flies, or hop-a-longs—are prevalent throughout the Caribbean islands in 2026. These tiny crustaceans (or sometimes biting midges) are most active during the early morning and at sunset, or when the weather is overcast and damp. While they are a natural part of the coastal ecosystem, their bites can cause intense itching and red welts, particularly for travelers with sensitive skin. In 2026, most luxury resorts employ daily "sand raking" and organic pest control to keep them away from guest areas. To avoid them, it is highly recommended to use a DEET-based repellent or natural oils like coconut oil, which creates a physical barrier on the skin that prevents them from biting. Staying on a towel or a beach chair rather than sitting directly on the damp sand significantly reduces your risk, as these pests typically stay within a few inches of the ground.