Lake Thunderbird East Trail is a standout hiking trail in Norman, OK, covering 6.0 miles with 250ft of elevation gain. Stats: 6.0 miles, 250ft gain, Moderate. Type: Loop. Surface: Dirt. Time: 2.5 hours. Fee: $6/vehicle. Dogs: Yes, on leash. Permit: No. Wildlife: deer, herons, coyotes. Best seasons: Year-round; cross timbers woodland shoreline. Bring water, sun protection, and appropriate footwear for OKs conditions. Leave No Trace: pack out waste, stay on trail, respect wildlife.