Location: Route 321 and Route 3040, Kamphaeng Saen Reassurance shield after Route 3040. Location: Route 321 and Route 3040, Kamphaeng Saen After Route 3040 we’ll get a belated welcome to Nakhon Pathom province. Location: Route 321 and Kasetsart University Rd, Kamphaeng Saen Turn right to head into Kasetsart University. Location: Route 321 and Route 346, … Continue reading Thailand Route 321, TH-3040 to TH-346