People often get confused about Guardienage. It’s not a cleaning service, nor is it an engineering service. Guardienage means to provide security for your boat and guard it when you are away. X-Treme Marine Guardienage is a simple service that allows you to leave your boat and forget about all the worries of what may happen to it. It’s that time of year again to ensure that your boat is maintained & ready for the new season.