Pinckney Recreational Area, north west of AA, is probably the most extensive nature area with much water, trails. If you want something pretty interesting is Port Huron — you have St Clair River thru town and not unusual to see huge freighters, like 2-3 houses, floating right past you that you can almost reach out and touch. Then there is the bridge to Canada, over the river, and right north of that, Lake Huron takes off in it’s vast expanse of water. If you want to do an overnight, try for a room at Doubletree and see if you can get a room near the end facing the water and bridge - 3rd floor is best, like 301/2. I think the “even rooms” face the bridge have nice balcony. Very cool.