Mass Rapid Transit Authority of Thailand (MRTA) organized 2nd Boosting Happiness at work activity 2017 leading 120 MRTA officers to visit Khun Dan Prakarn Chon Dam and study King Bhumibol Adulyadej’s project at Bhumirak Dhamachart Project, The Royal Nature Conservative Center, Nakhon Nayok Province before rafting and driving ATV for nature sightseeing on Friday 5th May 2017.