Kos is a family-friendly place known for its beaches. Beachcombers can spend the day at Tigaki Beach when the weather is nice. You might find that sights like Tree of Hippocrates and Port of Kos are worth a visit.
If being by the water is a major draw, Kefalos Beach is a spot you might want to check out, located 0.8 mi (1.3 km) from central Kefalos. Catch the sunset by the shore at Kamari Beach and Agios Stefanos Beach, located nearby.