Eagle Creek Golf Club is an 18-hole military golf course in Dover Air Force Base, Delaware, built in 1961 and designed by Ed Ault. It sits in the $$ (moderate) price range for golf in Delaware. The course is open all year. Tee times can be booked 30 days in advance. Play is generally limited to members and their guests.
Details like fees and seasons change, so call the course before you head out.