Phetchaburi sits at the north end of the Malay Peninsula, with the Gulf of Thailand to the east and the Tanaosi mountain range forming the boundary to Myanmar. Except for these border mountains, most of the province is a flat plain and features nice beaches along most of its shoreline. Thailand's biggest national park, Kaeng Krachan, is also located in Phetchaburi, covering nearly half of the province.
Phetchaburi city is one of the oldest settlements in Thailand, mentioned in historical records dating to the 8th century, and has significant standing artefacts dating to the 12th century. There are numerous temples in and around the city centre, in addition to the Royal Palace, known informally as Khao Wang, that dominates the skyline.
Nakhon Pathom province has long been known for its orchid and fruit yards. The province's main attraction is Phra Pathom Chedi, a 127m tall stupa, which marks the approximate location of the region's first exposure to Buddhism and Indian civilisation.
Ratchaburi province is full of various geographical features, from the low-lying land along the fertile Mae Klong Basin, fields to the Tanao Si Mountains which lie to the east and stretch all the way to the Thailand-Myanmar border.
From legend and historical evidence, it is assumed that Ratchaburi used to be one of the civilized kingdoms of Suvarnabhumi, reigned over by the Great King Asoka of India, who proclaimed the Lord Buddha's teachings throughout this land around 325 BCE. In addition, Ratchaburi was also the meeting point of ancient tradesmen and the gateway to Myanmar. Today, the province is best known for Damnoen Saduak — the most famous floating market in Thailand.