On our second day in Thailand, we went on a private guided tour to Kanchanaburi . We booked this tour ("Erawan Pure Fun" - a full day tour) online from Good Times Travel (www.good-times-travel.com) for USD210. Quite costly, but we wanted to maximize our time in Thailand and taking this tour turned out to be the more efficient alternative (considering other tour options available).
A private van picked us up from the hotel in the early morning for a 3-hr drive to Kanchanaburi. We had a tour guide so it was a very informative trip. Upon arriving at Kanchanaburi, we passed by their office to get some supplies - water - then headed to our first stop which was Erawan Waterfalls National Park.