Pros:
Tee pads, signage, benches
Other Thoughts:
The Sinks at DuPont Park is certainly unique. Ponds, inclines, and thick woods and undergrowth are the usual disc-eating dangers, but here it's sinkholes, which may or may not have water in them when you visit. These sinkholes add a strange flavor to a course that is otherwise long in amenities but more average in terms of playability.
The pros of this course are the amenities. First is the driving range right there at the parking lot; I'm going on 80 courses played but that's a first for me. Then every hole has nice signage, nice concrete tee pads for both the long and short tees (a big plus in my view), and there are next tee signs in many places. I believe every hole has at least two potential basket placements, and a bunch of holes actually have two baskets. So the potential for course variety between visits is high. Benches at every hole and enough trash cans such that the litter factor is very low are also big plusses.
The most important measurement of a course is the holes themselves, however, and by this metric The Sinks is good, but not great. There's no elevation to speak of, all 18 holes play in the woods, the only water challenges are basically big, deep mud puddles, and while the region is extremely scenic, the course is not placed to take in any of this scenery. The individual holes do have excellent variety, in terms of straight, left, right, doglegs, plus of course the variety of multiple tee pads and baskets, but it's still basically a par 54 course, even from the long tees. Each fairway is totally reasonable, in my view, and several holes have options in terms of approach. Overall, this course is a case of the designer and the local caretakers doing a fantastic job of making the best of what is, other than the sinkholes, an unremarkable piece of land.
Overall, I rate the Sinks Very Good, with that last half point due to my confidence that this is the sort of course that will improve for you with multiple plays due to the moving baskets and varied demands of the individual fairways. If you're anywhere nearby, the Sinks will be time well spent.