From Belize City bus to Corozal, walk to Corozal, bus to Chetumal, then bus to Palenque. 10 h 17 min $690. From Belize City drive to Palenque. 8 h 27 min $1014. From Belize City bus to Belmopan, bus to Flores, walk to Flores, then shuttle to Palenque. 17 h 35 min $1252.