Direct 2 Boater Blue Spiral Bound Captain's & Maintenance Logs w/Flexible Covers 100 Pages/Bk Bundle (2 Items). The Captain’s Log uses an excursion diary format to help you track trips while underway. It’s a great way to keep track of important information such as Pre-Start checklists, Fuel Logs, and Common Courses as well as a record of your excursions. The Maintenance Log features a Maintenance and Repair diary format to keep track of all work done on the boat, completion dates, part information, & engine hours in a neat, easy to reference fashion. These Logs are designed to be flexible and durable, feature a waterproof cover, and lay flat to make recording information easier.