In depends on the beach. Costa Rica has hundreds of wonderful beaches. Some are perfect for surfing, some for snorkeling, some for swimming and others are best left for contemplating. It’s always important to check with the locals before getting into the water.
Sometimes a beach can be safer at high or low tide, and sometimes there’s a strong current one day that will not be there the next. All of this is important to know. Good examples of beaches that are safe for swimming are Samara, Carrillo, Punta Uva, Ocotal and Playa Hermosa in Santa Teresa. There are no life-guards on beaches in Costa Rica, so be especially cautious when entering the water.
Don’t swim alone and don’t attempt to swim when you’re under the influence of alcohol. Also don’t forget that the beauty of non-swimmable beaches often is its suitability for surfing. Go ahead and take that surf lesson! You’ll find a whole different side to the ocean when you’re riding a wave!