Among your first stops should be Muirshiel Visitor Centre & Country Park. Here, you'll be able to orient yourself and get lots of useful information before you set out exploring.
Muirshiel Visitor Centre & Country Park is a great place to start out your day in Lochwinnoch. This tourist information center comes recommended by fellow travelers, but it isn't the only thing to do here. Allow time for other attractions like Beith Townhouse, Muirshiel Country Park, and Castle Semple Country Park to make the most of what's on offer in the area.