Bluffs Along The Pinnebog River at Port Crescent State Park The bluffs along the Pinnebog River at Port Crescent State Park offer some of the best views in Michigan’s Thumb region. Overlooking the river’s final stretch before it meets Lake Huron, these elevated areas provide a scenic backdrop of forests, dunes, and wetlands. Hikers can explore the Pinnebog River Trail, which winds through wooded bluffs and offers glimpses of local wildlife, including eagles, herons, and deer. The park’s history