AT THE SEA
Naiharn Beach is about one km long. It’s a tranquil spot and is far away from Phuket’s touristic areas.
Many people come here to swim in the beautiful blue calm and warm water (perfect in high season from November to May).
As it's so picturesque, the whole area is popular with joggers. A lap around the Nai Harn Lake with a leg including the whole length of the beach is around 2.5km (1.5 miles).
In low season, you might find a good number of enthusiastic surfers riding the waves. At the south end of this beach there is a permanent sandbank that gives a good and often fast ride, even in the smallest swells.
At the northern end there is a beach-and-reef break in the corner. This break can hold large swells and can at times get pretty potent. From May to October at the northern end of the beach, the waves are a little small for surfing but the perfect size for boogie boarding. Kids love to spend the whole day riding the waves in a relatively safe environment and it doesn't take long to learn.
Where Nai Harn Beach is Phuket's southernmost beach, Prohmthep Cape (or Laem Prohmthep) is the island's southernmost point, and likewise, it offers an amazing view of the Andaman Sea. Visitors can also take a short hike from the cape (less than a mile) to a scenic lighthouse.
Sunset is the best time to view the beauty of Prohmthep Cape, according to recent visitors, but they also say that this is no longer a secret spot: Travelers will usually have to share their vantage point with a host of others, but even so, a trip to Promthep Cape comes highly recommended.