South of Kata Noi and north of Promthep Cape, Naiharn is not Phuket's longest beach, but it borders the most gorgeous lagoon on the island. The middle of the beach is dominated by the Samnak Song Nai Harn monastery, which has obstructed excessive development and is the reason that the beach is generally less crowded than other spots on the southern part of the island. , Nai Han Beach is considered the land of peace. The beach boosts white, clean sand. Standing in the middle of the beach looking out into the sea, ones will see two bays curving inwards to almost meet one other. Protected by the hills, the beach is haven of many expensive yachts which are docked here.

A wide variety of water sports can be enjoyed, but swimmers should be alert for the red flag which warns of dangerous currents during the monsoon season from May to October. One can walk to nearby Promthep Cape to observe sunsets, which are often fiery and spectacular.