The Horicon National Wildlife Refuge Main Dike Road is open daily year-round, conditions permitting. The entire road is open for hiking and bicycling year-round. Access is limited to the road only, the adjacent dikes are closed. Vehicles can drive the eastern portion (two-level gravel). Please use the pull-offs for wildlife viewing/photography on the eastern portion of Main Dike Road. There is parking available near the fishing platform on the eastern portion of the road as well as near the Wild Goose State Trail on the western portion of the road (access from Hwy 26 and use the designated parking area).