[6] Geographically, Prachuap Khiri Khan is a moderate plain with elevations varying from sea level to 1,200 m (3,900 ft).

One of the best known, Hua Hin, has been a popular resort town since King Prajadhipok (Rama VII) built a summer palace there.

[9] Khao Sam Roi Yot National Park was established in 1966 to protect Thailand's largest freshwater marshes.

There is Prince Chumphon North Park (upper) Wildlife Sanctuary, 378 km2 (146 sq mi)[12]: 3 The city of Muang Na Rang was reconstructed after it had been abandoned during the fall of the Ayutthaya Kingdom in 1767.

The town was rebuilt at the mouth of the Ron River and renamed "Prachuap Khiri Khan" in 1855, which means 'city in the mountains'.

[13] In 1868, King Mongkut invited foreign guests to Prachuap Khiri Khan to watch a solar eclipse he had predicted for 18 August.

After resisting the Japanese in the Battle of Prachuap Khiri Khan, after several hours the defenders were ordered to cease fire by the government in Bangkok.

According to archeologist Kannika Premjai, paintings describe humanlike figures with accessories on their bodies, hunting scenes with bow and arrow.

[15] The provincial seal shows the Kuha Karuhas Pavilion, which was built when King Chulalongkorn (Rama V) visited the Praya Nakorn Cave (Sam Roi Yot District).

[16] The provincial slogan is 'City of pure gold, delectable coconuts and pineapples, delightful beaches, mountain and caves, land of spiritual beauty'.

As of 26 November 2019 there are:[17] one Prachuap Khiri Khan Provincial Administration Organisation (ongkan borihan suan changwat) and 16 municipal (thesaban) areas in the province.

Besides sunbathing snorkeling and swimming, visitors can also enjoy golf, spas, caves, peaks, waterfalls, shops, and nearby national parks.