Just be careful - if you push the wetsuit too far into her mouth, you could make her puke. Might be cheaper to pick up ear plugs. <img src="http://www.catsailor.com/forums/images/graemlins/tongue.gif" alt="" />

Couldn't resist.

Wetsuit might not be the best thing for her unless you're putting some wind protection over it. Wetsuits keep you warm when you're submerged. They're still vulnerable to evaporative cooling of spray and breeze.