Last month my husband and I took a little trip up to Sherburne National Wildlife Refuge for a day date (versus date night). There is a wildlife drive and 2 hiking trails, both with lots of wildlife viewing opportunities. It is a great place to take a day trip, otherwise for a longer experience there is a campground available at the nearby Sand Dunes State Forest. For more information check out this link: http://www.fws.gov/refuge/Sherburne/
Have a great Memorial Weekend!