Ha Ha!
Glad you have a sense of humor about it. Here's the rap: You get a "float" at a dive shop (or you can make one if u r handy.) This often consists of a simple tire innertube with a bright-colored zippered nylon cover on it. The cover has a hole to put the flag pole in. You wil also need an anchor, a heavy object on the end of a long rope - at least 50' - and some kind of a reel (can be quite simple). Then, of course, there is the flag; must be waterproof & have a wire to keep it stiffly standing out even in wind.
You enter from the shore with the flag & anchor (and I add a 2lb weight in case somebody's light, & a bottle of fresh water cause there ain't nothin' out there to drink!) I wear only my skin-diving gear at this point. You tow it by one of the handles on the cover thru the surf. Kick out towing it with one hand while you approach your site. Open the zipper at the site & pull out the reel for the line with the anchor. Have your rope marked in 10' increments so you know how deep the water is where you are descending. Drop the anchor & unreel the line until the anchor hits the bottom. It should catch in the sand. The line should have a bit of slack in it to accomodate the waves, but not so much tht the float is at a 45 degree angle from the anchor.
Now you swim back to shore, put on your diving gear & go to the site with your buddy. Do the same to retrieve the float after your gear is removed post-dive. It is easier to maneuver with a flaot thru the surf without a tank on. Tell us how it goes, Chaney!