I went on the tour in Janaury 2004. At that time we did cross the bridge on a train and continued on the train to the town of Tham Kra Sae about 30 miles past Kanchanaburi, had lunch and returned. Overall it was about a 12 or 13 hour trip from Bangkok. I would certainly recommend this trip for anyone with any knowledge or interest of WW II in S. E. Asia.