The original scavenger hunt?

There have been multiple movies centered around grand scavenger hunts. The DaVinci Code, National Treasure and others. Apple's App Store hosts more than 50 scavenger hunt apps.
What's the origin if the scavenger hunt? Who knows?
Many believe it has its roots in early hunting games. It's widely believed to have been popularized again in the 1930s.
In Camp Nageela West, we have the DaNiSH (Dani's Nageela Scavenger Hunt), a popular and wacky hunt.

But Jews have always done a Passover scavenger hunt... Well, 2 actually.

The Mishna, compiled nearly two thousand years ago describes the annual candle- lit search for chametz on the night preceding Passover. This year, it's tonight, and we search every spot where we might have brought leavened- grain based (non matzah) products.

Probably of more recent origin, but still fairly common is the children's hunt for the afikoman at the Seder (Monday and Tuesday nights respectively, this year). According to some, this practice may also be alluded to in the Mishna. For more on this hunt, check out this very thorough article http://www.yutorah.org/togo/5768/pesach//articles/rabbi_flug.pdf.

At any rate, we've been doing this hunting thing for ages!
Happy Passover, and Happy Hunting!