Several groups of two line up in one or two rows (outward and return journey) and form one or two tunnels, so to speak. A distance of approx. 5 metres is maintained between the pairs. The rest of the participants line up in a column in front of the first group of two. The jumpers choose a swing direction and a rhythm together and then try to cross the tunnel. One swing direction is much easier. The aim is for the entire group to pass through the tunnel with/without intermediate jumps and, above all, without any interruptions/errors between the jumpers. The positions of the swimmers and runners are changed from time to time.
