When crossing on a tension diagonal line, what is the proper position for the rescuer?

The proper position for the rescuer when crossing on a tension diagonal line is to hang onto the rope with their feet downstream while lying on their back. This position offers several advantages in terms of safety and stability. By being on their back, the rescuer can maintain a low center of gravity, which helps prevent them from being flipped or tumbled by the water's force. With their feet oriented downstream, they are more likely to be positioned correctly to navigate obstacles and potential changes in water flow.

Additionally, lying on their back allows the rescuer to better utilize their core and arm strength to stabilize themselves and control their movement along the rope while also keeping their face above water. This position minimizes the risk of being submerged or pinned against obstacles, providing an effective means of protecting the rescuer during transit across swift water.

The other positions do not offer the same level of safety and control. For example, being in a upright position does not facilitate the necessary balance and can increase the chance of falling or losing grip on the rope in turbulent conditions. Similarly, being on one's side or in a crouched position can compromise a rescuer's stability and increase the risk of being swept away or injured by the current.