You can park at one of two places, first at the main entrance from which it is about a half mile. You can also park at a small campground entrance off Mt. Hope road. This is a short .2 mile hike away. Fenner is locked up for the night so night caching dosen't work well here. Try to go when there's good light out, that's usually safe. Fenner is a great place to take a short walk or a long hot and see some wildlife!