Fort Miles Lantern tour, 7 p.m., Cape Henlopen State Park, Fort Miles Orientation Bldg., Lewes. Explore U-boats on prowl, sailors in distress, and what World War II turned out to be for soldiers. Cost is $8, veterans and active service members $4, recommended for ages 10 & up, park entrance fee in effect. Register online at destateparks.com/Programs or by calling 302-644-5007.