Olive Creek State Recreation Area Trail is a standout hiking destination in Martell, Nebraska, covering 3.0 miles with 60ft of elevation change. Stats: 3.0 miles, 60ft gain, Easy. Type: Loop. Surface: Dirt. Time: 1-2 hours. Fee: $6 park fee. Dogs: Yes. Permit: No. Wildlife: deer, herons, foxes, turtles. Best seasons: Quiet lake trail south of Lincoln with good birding. Pack water, layers, and appropriate footwear. Conditions vary across Nebraska. Leave No Trace: stay on trail, pack out all waste, respect wildlife.