Chungnam Culture and Tourism Foundation lists a 24-hour C-Tour Pass for demand-responsive tourist buses in Gongju and Buyeo from 16 September to 31 December 2026. The listed individual fare is KRW 2,600, with an extra 10% discount for purchases of two or more. This is not a universal pass for all city buses. Verify the booking app, pick-up points, service boundaries, operating hours and checkout at 1551-3456.