I can't see 150 boats participating and when I see numbers like that it makes me question how grounded the organizers are. However, a sail like this is an adventure and the cultural exchange / teaching kids adds just a little more benefit. Of course there are risks but it wouldn't be an adventure if there weren't. The key is boat prep, body prep, planning, and more preparation. The sailors will have to take a little more serious approach to taking care of each other and I would consider setting up a buddy system of sorts so one boat doesn't get left way behind the others. I also wouldn't recommend crossing this bit of ocean without some sort of experience.