How long before a tour do I need to make a booking? July 16, 2015 September 19, 2021 Touring Guyana You can express your interest in a tour and pay atleast 5 days before the tour, however if no reservation is made, we book on a first come first serve policy. About Author Touring Guyana Previous postHow do I pay for a tour?Next postDo you only do tours to places you advertise?