It was opened in 2008 and is one of the largest themed waterparks in Europe.

It has an area of 185,000 m² decorated in the exotic and mysterious style of the ancient kingdom of Siam, and features a wide variety of slides where visitors can let off steam.

Its most thrilling attractions include the 'Dragon', designed to produce the effect of zero gravity, and the 'Tower of Power', a 28-metre long slide with a practically vertical slope. Some of its other attractions such as the 'Mai Thai River', featuring a ride along a river amid tropical fish and waterfalls, offer a more peaceful alternative. It also has activities for all the family such as sea lion shows and floating markets in the style of a typical Thai village.

Siam Park has venues for events, conventions and concerts, as well as a surfing school for both adults and children.