Just so you know, there are 2 caches in the Interlake on the Prime Meridian Trail, that aren't listed on Geocaching.com
"Swamps and Songs"
Location: N 50°23.430' WO 97°29.165'
Level of Difficulty: Easy hiking. 30 minutes from Hwy 415.
Hint: Check into Heartbreak Hotel
"Leave it to Beavers"
Location: N 50°49.628' WO 97°35.267'
Level of Difficulty: An easy 10 minute walk from Wheathill Road.
Hint: Beak Bender Hamlet
I haven't looked for either of them yet, so I don't know anything about them...