Rope
The ropes are used to swing across the water to board another ship. When a figure mans a rope, he rolls one red die and one yellow die. He then moves directly out from the ship’s side (as shown in “Example: Swinging on a Rope” below) a number of spaces equal to the rolled range. The swinging
figure may pass through figures and ignores any effects from terrain passed through. However, the effects of any terrain the figure ends his swing in
still takes effect. If a figure or movement-blocking obstacle is occupying the space that the figure ends his swing in, reduce the rolled range until the figure lands in an unoccupied space.
The bold statement seems to indicate that you go out directly from the side of the ship so I would say no that you can't swing towards the bow or the stern. Directly out can be taken to place a restriction on the direction. Swinging to the bow or stern wouldn't qualify as "directly out" from the ship's side.
