Chiang Rai province
Chiang Rai, the northernmost province of Thailand is about 785 kilometers north of Bangkok. Situated on the Kok River basin, Chiang Rai covers an area of approximately 11,678 square meters with an average elevation of 580 meters above sea level. The province, which is located within the renowned Golden Triangle area where Myanmar, Laos and Thailand converge, is also known as the gateway to Myanmar, Laos and Southern China.
Chiang Rai, which was founded in 1262 by King Meng Rai,
was the first capital of the Lanna Thai Kingdom (Kingdom of a million rice fields), which was later conquered by Burma. It was not until 1786 that Chiang Rai became a Thai territory and was proclaimed a province during the reign of King Rama VI in 1910.
Today, Chiang Rai is a travelers paradise endowed with abundant natural tourist attractions and antiquities; the province itself is evidence of past civilization. Attractions range from magnificent mountain scenery, ruins of ancient settlements, historic sites, Buddhist shrines and ethnic villages as the province is also home to several hill tribes who maintain fascinating lifestyles. For those interested in the natural side of Chiang Rai, jungle trekking is recommended along various trails.
Chiang Rai which tends to be a little more 'laid back' now competes with Chiang Mai as a tourist attraction and is fast becoming a popular escape for tourists wanting to get away from the troubles they left behind.
Get around
Public transport consists mainly of tuk-tuks and songthaews, plus a smaller number of taxis. The city itself can be explored on foot, but for trips into the province consider renting a car or a motorbike. Budget and Avis both have offices in Chiang Rai and there are several local agencies. If you don't feel up to driving in what may be a very different environment, then consider hiring a car with driver - it doesn't cost much more.
A motorbike is a good way to see these parts; there are several trails and a 250cc dirt bike is a great way to see the country side. However be aware that many of the mountain roads are narrow and winding and that Thailand has one of the highest rates of motorcycle accidents in the world. Stay alert. 
History of Chiang Saen, Chiang Rai
It is recorded that an ancient community was founded in the north of Chiang Rai Province more than 2000 years ago. This ancient town was named Yonok Nak Phan. According to legend, King Singhanawat founded the town, and the Nagas (mythical serpents) helped dig the town’s moat. Later, Yonok Nak Phan faced its unfortunate destiny; it collapsed and turned into a swamp. According to the geological evidence, it is believed that the town’s destruction was caused by an earthquake which turned it into present-day Chiang Saen Lake.
The above story is just a historical tale. However, it is clear that Chiang Saen existed during in the reign of King Meng Rai of the Lanna Kingdom, because it known that he truly existed. In the ancient Tai language of Burma and Northern Thailand, the word ‘chiang’ means ‘a big town’, while the word ‘saen’ presumably comes from King Saen Phu, King Meng Rai’s nephew. After King Meng Rai passed away, King Saen Phu came back, renovated Chiang Saen, and was its third king. He also resided and worked there; therefore, Chiang Saen was a capital city from 1327 – 1341, spanning the reigns of King Saen Phu and his son, King Kham Fu. After that, Chiang Saen declined in importance from the capital city to simply a leading town. Nevertheless, Chiang Saen Town was well developed, and Buddhism was dearly cherished by its governors. Ruins of 75 temples have been found within the town walls, and 66 were situated outside. This large number of temples attests to the thriving civilization of Chiang Saen.
In 1557, Chiang Saen, Chiang Mai and several towns of the Lanna Kingdom were captured by Burma. Later, Ayutthaya won them back, and eventually they came under the control of Bangkok.
The many ancient ruins make Chiang Saen a peaceful tourist attraction, with lots to explore. The Town offers a charming and serene atmosphere on the banks of the Khong River, at the three-country border between Laos, Burma and Thailand. Chiang Saen has both scenic natural attractions and an impressive cultural heritage. In particular its impressive Buddha images showcase Lanka, Sukhothai and Ayutthaya art and techniques. Besides, the graceful stuccos and splendid craftwork found in the area are Thailand’s great heritage for its younger generations.