Locks, Bridges, and Narrow Water

• Explain approach discipline, waiting areas, traffic lights, bridge restrictions, and lock etiquette.
• Apply locks to a realistic onboard situation.
• Recall the core check: treat lock and bridge approaches as controlled until proven otherwise.

A self-guided revision companion that explains essential concepts, then helps you practise and test them. It supports—but does not replace—recognised instruction, practical training, assessment or certification. Access is a one-time payment, not a subscription.