Igfest is a games festival with a difference, celebrating street games, outdoor spectacles, mass social interactions and the reclamation of public urban spaces for play and adventure. The festival is currently under way in Bristol in the UK.
One of the games (which is running as I type) is Moose Hunt. The video below will give you a good idea of what the game involves:
Moosehunt 2009 from Igfest on Vimeo.
The game involves searching for 'moose' in the wilderness around Bristol. The Google Map at http://moosehunt.mobi/ is centred on the moose's last sighting. You will need to visit the website to get the rest of the rules.