Wow i definetly need to go in greece once, that place look so amazing.
over 3.5 km thats insane those machine still impress me all the time. you are confident to do that kind of fly over water. how many batteries left at the end of that flight?
Greece is beautiful you should visit, this was my first time flying over water , I felt more safe than flying over buildings when the drone returned it still had about 29% power.