You can visit Pickney Recreation Area, which is about a 30-minute drive northeast from Ann Arbor. It offers a range of hiking experiences, including the 2-mile Silver Lake Trail and the 5.1-mile Crooked Lake Trail. Another option is Seven Lakes State Park, located about an hour north on US-23. This area is known for its verdant farmland, forests, and 230 acres of water. Both locations are great for outdoor activities during the summer months in Ann Arbor.