Book excerpt: Over £500 million is spent on coastal and maritime construction in the UK every year. This work is particularly hazardous due to the hostile environment and uncertainty caused by the combination of storms, waves, currents and tides. At present, there is little health and safety related guidance available to assist coastal/maritime clients, designers, contractors and other stakeholders to ensure this work is undertaken in a safe manner. The CDM Regulations, amongst others regulations, require these parties to consider and assess construction risks.