Sing when your swimming

[nickjb]

http://www.desdiver.com/Products/

[docmartin]

finally what we have all been waiting for. next step will be the swim-in theater so we can all watch movies underwater instead of stare at all those stupid fish.

[Charlie99]

It's easier just to use a small plastic grocery bag.

Blow a bit of air into it, hold it up to your mouth, and sing away into your portable air pocket.

The same technique makes talking much more understandable.

It also works with a totally clueless, oblivious buddy. Go to the blind spot 3' above and 5' back of him, yell into the bag something like "Hey buddy, where ya going?" Really wakes 'em up :D while they frantically search for where the voice came from.

[livestodive]

I have a buddy thats so fast I have threatened to cut 6" off the end of his fins. This however allows a lot more possibilities. Now if I can get it to echo!!!! He'll think a supreme being is visiting lol