I have visited theme parks, done tourist boat trips, bus tours, guided sightseeing etc.. (journeytom.com)
The Chao Phraya River tourist boat takes visitors on a cruise circuit of eight piers for a sightseeing tour of the historical sites in old Bangkok along the Chao Phraya River. (tour-bangkok-legacies.com)
After the Oriental Hotel, the Chao Phraya River tourist boat takes you past three very old buildings on the Bangkok bank of the Chao Phraya River which is on your right as you are going upriver. (tour-bangkok-legacies.com)