Chip and Dale's Treehouse is a walk-through attraction located in Mickey's Toontown at Disneyland and Tokyo Disneyland. (From Disneyland's Website) - "There's a party up in the old Redwood tree and you're invited! Enter through a carved entryway and climb a winding spiral staircase into the heart of the tree that Chip 'n Dale call home. Up top you'll be rewarded with a stunning view of Mickey’s Toontown."
P.S. - My new total includes 20 minutes of walking, and team totals are up to 3,438 - we're blue!!