Be very cautious when you go into any body of water in the country as tides and rip currents can be strong. Also, as much of the country is considered the rainforest, the weather can change dramatically on very short notice.

In 2026, the greatest danger in Costa Rica’s oceans isn't wildlife, but rip currents, which are responsible for more tourist fatalities than any other cause. Most beaches in Costa Rica do not have lifeguards, so you are largely responsible for your own safety. A supportive peer "maritime" tip: always ask locals or hotel staff about the current conditions before entering the water. On the Pacific coast, swells can be massive and deceptively strong. If you get caught in a rip, do not swim against it; swim parallel to the shore until you are out of the current. While crocodiles are occasionally spotted in estuaries and river mouths (like the Tarcoles area), they are rarely a threat on open swimming beaches. Common sense—like not swimming alone or after consuming alcohol—remains your best defense in these beautiful but powerful waters.