A cableway system (1) for forestry is described, the cableway system (1) being arranged for attachment to an object (2) in order to carry the object (2) between two points of support (3), the cableway system (1) comprising : - a carriage unit (4) to be suspended between the two points of support (3), the carriage unit (4) being suspended by means of a first connection (5) of variable length and a second connection (6) of variable length, each of the first connection (5) and the second connection (6) including a cable drum (51, 61) and a cable (52, 62) for winding on the cable drum (51, 61); and : - the cableway system (1) being configured to move the carriage unit (4) in the direction from one of said points of support (3) towards the other one of said points of support (3) by unwinding cable from one of the cable drums (51, 61) while cable is simultaneously wound onto the other one of the cable drums (51, 61). Further, a carriage unit (4) for use in said cableway system (1) is described, and also the use of said cableway system (1) for moving an object (2) between the two points of support (3).