How much is enough for simple swimming? I don't dive and don't plan on it, but will be on vacation soon and will be near the ocean and might stumble into the water!
What about showers and the like?
I see a lot of posts that say something to the effect of "it's only 3 ATM so I wouldn't shower with it"... Isn't 3ATM roughly 100 feet? I can't/don't want to hold my breath to 100 feet, so why is that not enough to shower/swim?