I've heard good things about Old Mill Stream, but I've always gone to Lake-in-Wood. I like it, it had a lot of seasonal Sunlines, is very shaded, and it's a pretty kept up park. I can't comment on the bathrooms but they looked older, though that was six years ago and it may have changed.
Shady Maple Smorgasbord in East Earl is a must-see place to go to see and eat!
2007 T-286SR Cherry/Granola, #6236, original owner, current mileage: 9467.8 (as of 5/26/19)
1997 T-2653 Blue Denim, #5471
1979 12 1/2' MC, Beige & Avocado, #4639
Past Sunlines: '97 T-2653 #5089, '94 T-2251, '86 T-1550, '94 T-2363, '98 T-270SR