If you want to take a cruise down the Chao Phraya River, this is a great option.  For a long time, Thai people have been bound to live with the river for a lengthy tail boat ride in the canal. The Chao Phraya River is the biggest river in Thailand. This is an excellent opportunity to take a long-tail boat into a small canal that served as the main river before the Chao Phraya River grew to its current size. You may visit Wat Pak Nam to see the Big Buddha, feed the fish, and relax at a cafe along the canal.