This is the ultimate Boating Nav Lights challenge.

The questions are randomised, so you never know what order they will appear in, and the clock is ticking.

Reacting correctly to fast changing situations on the water is essential for the safety of your crew members, your boat and yourself – and knowing your Nav Lights is a vital element of effective decision making.

You have just 60 seconds to answer as many questions as you can.

To start just click the button below. Good luck!