Lake Mac is beautiful. We were on beach #9 with our doggos. They loved swimming with us. There are people on boats and jet skiis. There are tons of places to camp if you want to stay overnight. We come here during the winter and my kids/boyfriend will walk on the ice. There are some spots you can hike on as well. During the summer we love kayaking with the dogs. We've had bonfires and breakfast at the lake too.
For anyone looking to get a hike in before a swim this is a good place to go.