Insurance people will take your money however they can get it. If I can fill out a form, put in a check, stick it in an envelope, poke it in a recepticle in an airport, and get insurance for the flight (lugage, etc.) I'm bording 30' away in 10 minutes, they should be able to take your money at the registration desk at a regatta. WHY someone would buy insurance for a flight, I don't know....but it's there and you can do it.