Coon Lake MN HELP

So I decided to go crappie fishing for the first time in a few years at Coon Lake MN were I use to always go to as a kid. The lake still looks the same over at the DNR access. I was fishing at the rocks and didn't even get nibbles so I went over to the back side of the DNR access to were the lake goes into Thielen Park around the houses and I was fishing around Thielen Park and had bites every now and then. The only problem was that the fish were too small to hook I just end up pulling the hook out of there mouth since they nibble at my small crappie jig's tails. I did however catch something of decent size but lost it. What i want to know is if there are still good size crappie there and were to find them. Also I enjoyed Thielen park alot and wonder if there are any largemouth bass in the back waters of Coon Lake in Thielen Park also at the rocks and docks at the DNR access.