MaxSea Logbook Information can be a mariner's most valuable asset. Some information (like charts and weather) is provided from external sources, but no less valuable is the information that is captured while underway. MaxSea makes it easy to capture this information automatically with its integrated logbook, and allows you to customize your charts with your own detailed marks and notes. Generate Logbook Entries Automatically - The MaxSea logbook is a detailed electronic record of your your voyage. MaxSea records data coming from all of your instruments, and gives you the opportunity to add your own comments. Logbook entries can be generated at automatic intervals, when triggered by a change in any value coming from your instruments, and/or with a single keystroke.