Nearing the proper start

The day to start sailing north is approaching and starting to look proper real now. Having never made anything like it before, I'm not quite sure what I need to think about, take onboard, … I guess, I'll have to figure it out along the way 😅. I haven't really mapped out the trip yet, but some quick estimates I made show paths of roughly 600 nm, while the distance as the crows fly is of 408 nm (770 km).