Where? Follow My Get Out Spokane Map. Access Riverside State Park by crossing the 9-mile bridge at Charles Rd. You need a Discover Pass to park here. We found this hike on the All Trails app. You can follow your GPS to the parking lot. When? 7/22/18 How far from Dick’s Hamburgers (Downtown Spokane) About 13.2 miles, 25 minutes. What’s the hike like? After crossing the street toward the Centennial Trail, you veer to the right and catch the trail. It’s well groomed and well-marked for the most part. We followed Trail #25 for the majority of the hike. The path is surrounded by trees, bushes and lots of rock formations. The trail rises and falls until you reach the Dry Creek area. It’s not clear what to do here, but making our way across the rock bed, we picked up the path again and continued on the trail. Our only goof-up was staying on Trail #25 too long instead of turning on West Pine Bluff Rd. The All Trails map said it was a 5.4 mile hike, but by not making the turn, we ended up hiking about 6.4 miles. Overall the trail is well marked. Once making the turn at Seven Mile Rd., we hiked back to our car along the Centennial Trail. Although it’s hard to call this hiking, it was good exercise and the views of the river were awesome as well.