There are now two floating markets in the old city of Ayutthaya which make a nice change from just visiting old temple ruins all day. Now you can break up your time to make a more balanced day trip from Bangkok. Earlier I visited Ayutthaya Klong Sa Bua Floating Market which is to the north of the old city. The next one that I visited is to the East [MAP] and goes by a similar name, though they use different spelling. This one is Ayothaya Floating Market. It is conveniently next door to the Elephant Camp so you can do an elephant ride for 600 baht if you like before visiting the market.