If you’re getting around in Bangkok, there is a good alternative to sitting in traffic – get on the water.
River taxis run up and down the Chaophraya River and its adjacent canals (or klong) until 7:30 pm. Many of the big sites in Bangkok are along the river or are in close proximity to it so river taxis are ideal for sightseeing. A day pass for unlimited stops can be bought at the piers for 100 THB ($2.85USD).
River taxis are an integrated, vital part of Bangkok’s transit system. They are virtually the only direct mass-transit connection, other than the bus, to the Phra Nakhon district which contains Bangkok’s historical centre and magnificent sites like the Grand Palace, Wat Pho, the Giant Swing as well as the backpacker haven on Khao San road. The spectacular Wat Arun is also most easily accessed by boat and is located just across the river from Wat Pho.
If you’re on the river you can also go downtown by stopping at the Saphan Taksin Pier at the end of Sathorn Road. This pier is linked to the sky-train (or BTS), which then links to the Metro at Silom Station.
Boom. Bangkok is your oyster now with only minimal need to haggle with a tuk-tuk or a regular taxi. It may seem like a slow way to get around but that will only be the case until you’ve sat in a Bangkok traffic jam.