As you can probably tell from the title, this is a cunnilingus position designed with a swimming pool or body of water in mind.  You will need a raft, tube, or noodle.

To begin with, the wife needs to get some type of flotation device.  Noodles work great for this, or some type of small raft.  The couple goes to wherever the ladder or steps are in the pool and the husband leans back or sits on them.  The wife lies back onto her noodle in a floating position, and puts her feet up on the ladder or side of the pool, around her husband’s head.  The husband is now able to pull her into him and give her oral sex.  This one should be pretty easy to picture.

Pros: Another carefree position for the wife.

Cons: Make sure your flotation device keeps you afloat!