For the gymnastically impaired, there are few things more satisfying that doing an underwater handstand. Incredibly, a skill that requires superb balance and strength on solid ground can be executed underwater with almost zero effort.
Since nothing is fun unless someone loses, underwater handstands have been made into a classic pool game. The object of the game is to hold an underwater handstand longer than your opponents. This requires balance, poise, and if you are halfway decent, some serious breath-holding skills.
You can hold a handstand contest with two or more people, although it's important to have an impartial judge. The judge counts to three, yells "Go!" and the contestants submerge themselves to assume their handstand position. The handstand is good until both feet are underwater. The last person to tip over wins.
Variations include one-handed handstands, one-finger handstands, and the rare no-handed handstand, also known as treading water upside-down. If it sounds hard, that's because it is.