Boat NAVI is a free application for Android devices that can be used to find out the best places to fish. The application is based on the concept of a map and the location of your favorite fishing spot. To use the application, first, select the fishing spot you want to know more about. Next, tap the button "Boat NAVI", and then tap the button "Fishing spot information". You will then be given information about the fishing spot, such as the depth of the water, the type of sea bottom, and the type of fish. You can also choose to add other locations to your favorites.

When you're on the map, you can easily find out the exact location of your favorite fishing spot. The application is also useful for sailors and fishermen who want to know more about the places they want to visit.