Prepare your voyage plan, remembering to tell someone about where you intend to go and how long you intend to be out on the water. The person to advise is the duty officer at the local sea rescue group. Failing that, a responsible neighbour. Plan all your day's boating activities. Always allow yourself plenty of time to return to the shore before nightfall.
Navigation lights are essential for boats out after sunset.
If you change your plan notify someone. Expected time of return. The names and telephone numbers of people on board. Amount of fuel carried. A list of safety equipment carried.