The Chantaburi fruit market — Talad Phon Lamai — is a covered wholesale market on the north edge of town that runs seven days a week and explodes in scale during the summer fruit season. From May through July the lanes fill with Monthong durians, lychees, longans, mangosteens, and the deep-red Chantaburi rambutans for which the province is famous.
Even off-season it is worth a visit for tropical fruit you may not have seen — salak (snake-skin fruit), longkong, jackfruit — at prices a fraction of those in Bangkok. Bring small bills. Best in the morning.