If you like the seafood restaurants in Ratchadaphisek, then you should definitely check out the delicious seafood in Yaowarat. Just jump on the metro in southwards direction and get out at the last stop, Hua Lamphong.
Take the MRT north to Phahonyothin and you'll reach the Chatuchak Weekend Market in no time. Keep in mind that this enormous market is only opened on Saturdays and Sundays.
