The State Railway of Thailand has launched the 'Rod Fai Loi Nam' programme for a day trip to Pasak Jolasid Dam in Lop Buri.

The reservoir is the country's longest water-retention clay dam. It is one of a kind where a railroad runs along the dam's edge. When the reservoir fills up, especially at the end of the rainy season, the rail line peeks a bit over the water's surface. When the train passes the section, it looks as if it is floating on the water, which is the meaning of Rod Fai Loi Nam.

The trip is organised every weekend until January, starting on Saturday, except Dec 5, 26-27 and Jan 2-3.

The train will leave Hua Lamphong terminal at 7.10am and stops at popular stations including Bang Sue, Don Mueang, Ayutthaya and Saraburi. When it reaches Pasak Jolasid Dam, the train will stop for 30 minutes for tourists to take pictures of the train over the body of water. The journey will continue to the last station at Khok Salung before returning to the dam at 11.42am for visitors to have leisure time or lunch. The train will leave the dam at 3.30pm and return to Bangkok at 6.50pm.Round-trip ticket prices are 290 baht for a third-class seat and 490 baht for a second-class seat in air-conditioned carriages. The service is also available for group tours who want a private rail wagon. Prices start from 34,000 baht for 20 passengers to 51,400 baht for up to 110 passengers. A VIP carriage with meeting facility is also available for 8-30 passengers. The price is 40,000 baht.