This is where Sirinart National Park offices are located. Naiyang Beach (Haad Nai Yang) itself is on a long curving bay lined with evergreens that provide shade to picnickers - for which activity this is a very popular spot. The large coral reef is home to many different species of fish, and Naiyang Beach is well known as a site where sea turtles come to lay their eggs during the period from November to February; the population of these has, however, dropped of greatly. First class accommodations are available, and small food vendors carter to the many day trippers that visit.
To get there take Thep Krasatri Rd., turn at the first traffic light north of Thalang Town heading west, to Naiyang Rd., and look for signs indicating the park entrance.