Yes, Costa Rica offers several "gold-standard" calm beaches that are perfect for swimming and families, particularly on the Pacific coast. Playa Panama and Playa Hermosa in the Gulf of Papagayo are world-renowned for their sheltered, lake-like waters due to the protection of the surrounding bay. On the Nicoya Peninsula, Playa Samara is protected by an outer coral reef, which breaks the large Pacific swells and creates a safe, shallow area for children. Another "hidden gem" in 2026 is Biesanz Beach near Manuel Antonio; it sits in a small, jungle-shrouded cove that remains tranquil even when the main beach has rough surf. For those on the Caribbean side, Punta Uva offers reef-protected turquoise waters that are ideal for snorkeling. When searching for calm water, look for beaches described as being in a "Bahia" (Bay) or "Ensenada" (Cove), and always check for the Blue Flag status, which indicates high standards for water quality and safety. Avoid the "surf meccas" like Dominical or Jaco if your primary goal is a gentle, relaxing swim.