Going by boat is greate choice of Thai people transporting themselves. This because in Bangkok there are many cars on the road and therefor they have many traffic jams.
Boats and ferries are a convenient and interesting way to get around Bangkok. They can be intimidating at first but once you figure out the routes and the rules they’re very easy to use.
Bangkok has two boat systems — the Chao Phraya river ferry system and the canal ferry system. The river ferry is operated by the Chao Phraya Express Boat Company
The Chao Phraya Express Boat Company publishes the schedule and map on their website, but there is no canal ferry map or schedule available online.
River boats run express or local and travel either inside the city center or beyond it. Different colored flags let riders know which boat they are boarding.