We plan to bird from 9 am to around noon walking 3-5 miles on old paved roads. This walk is free and open to the public. You can join for any portion of the walk; the causeway to access the preserve is approximately 3/4 of a mile one way, so out and back makes a nice 1.5 mile walk. After crossing the causeway, there are several miles of old paved campground roads to walk.