This isn't the be all and end all of water related problems but........

Wear earplugs. I'm totally cereal. Especially if you are a core winter shredder. Kids, start wearing earplugs. I wish I did when I was a children. I just started a year ago, but all my sinus and ear problems have decreased by at least 90 % . And spit alot in the water. Not only does it make you look cool and dangerous, you don't want any seawater gettin in ya. Don't swallow any of that stuff. Ya know what it is that I be sayin' ?