Wotion makes Notion work with an Apple Watch. With this application you can easily see and update your notes from your Apple Watch. There is also an iPhone application that come with it for selecting the pages you want to see on your watch.
Once the course is entered in the application you will be able to orient yourself simply with the vibrations of the Apple Watch.
Whether you are sailing, swimming or hiking you will be able to follow the right course just with the vibrations of your watch.