r/Glasgow Tools

I know this probably has been covered but this post is more to help us plebs who don't drive. Looking for nice places to explore that can be reachable by public transport from Glasgow. I've done all the country parks within Glasgow to death as well as Balloch/Loch lomond. I'm just wondering if there's any hidden gems that's isn't a ball ache to get to if you don't drive. By the looks of it anywhere decent I've been to or its only reachable by car.