Scavenger hunters in Mexican wrestling masks will descend on downtown Montreal in the first-ever Faceless Invasion competition on March 31.

Doing away with normal scavenger hunt items like "bus ticket", "chewed gum" and "airplane jet engine," the Faceless contest plans to take the tradition to a level it has never been before.

And it involves lots of nudity.

Wearing Mexican wrestling masks.

Each team will have to videotape their exploits as they embark on tasks in six categories: problem solving, engineering, eating/drinking, body modification and, ahem, sex.

Though definitely not a contest for the prude, future politicians can relax as they take on a completely different persona in the Mexican wrestling match to keep mummy, daddy and future constituents out of the loop.

The list of tasks is 200 items long and ranges from digging up a buried inflatable sheep, mud wrestling and running down St. Catherine street in the light of day - all without taking off the mask and all of which might be difficult in the chilly Montreal weather.

St. Catherine street is the shopping and restaurants center in downtown Montreal, so be wary when booking that weekend getaway - you may get more scenery that you'd hoped.

The winner will get $500 in cash for their efforts. Registration closes Friday.