For those planning summer trips, you may want to check out http://www.geocachingontario.com/
They call it "treasure hunting" but it is the same game, only with chances at bigger prizes. I have found a few, others are 5/5, beyond me, but there are the family "Sunday Drive" 1/1 ones as well.
They are mostly between North Bay, and Kapuskasing Ontario. ( 4 to 8 hours from Toronto.)