The Hunting the Snark is an action game played on both your GPS-enabled mobile device and in the real world. In it, you hunt a Snark. If you invade its physical location before the game time has expired, you win. Otherwise, you lose. Also, at random intervals the Snark becomes a Boojum, and it will then attack you until a random interval expires, at which time it will become a Snark again. If, as a Boojum, it invades your physical space, you lose.