When working over water at any location, at least two people need to remain within sight and sound of each other at all times. They will require constant access to a moored boat or life raft.

Suitable ladders or other equally effective ways of assisting workers to climb from the water onto the installation need to be provided at regular intervals around the exterior. It will be necessary to consider the design and location of these to help prevent the risk of physical damage from boats (adjacent to cage mooring points may be appropriate). Ladders ought to extend below the water surface to give sound footing and incorporate a secure handhold at the top. Equipment such as a boat-hook can be provided to help rescuers retrieve people from the water.