When you go optimist yachting you have to check the weather because if it was windy and raining you would most likely capsize and before you go you need to make sure that your life jacket is properly fitted because if you fall out you won't drown. There is a sandbar if you get stuck in the sandbar you will have to get out and walk the yacht all the the way back .
If you hear two whistles you have to stop and go back to shore and if you hear one whistle you just have to stop were you are.