I know everyone likes 18 hole courses, but this park might honestly be better as a 9 hole. It has good variety in terrain for being in an urban area, and I can see how some challenging and interesting longer holes could be carved out. For example, combining holes #1 and #2 would result in a 375'ish hole that plays straight up an open fairway at first (current #1), then kinks left and continues down a tightening approach and over the creek to a wooded green (#2).
I have played this course four times now. For the 2nd-4th visits, I tried to come play at times when I thought the course would not be busy (like on a weekday afternoon before 9-5ers get out of work). Unfortunately on each occasion a bunch of other people had the same idea so my experience has been the same: Lots of time waiting on tee pads for other groups to not only clear the current hole but also tee off on the next hole to get out of firing range. Lots of errant discs flying nearby and landing on my hole's fairway (and to be fair, I've thrown some off-target shots too). Lots of time waiting for walkers on the paths.
It's easy to see why this course is popular. It has decent variety and challenge for beginners/amateurs, and is located close to a large population base. If I could have this park to myself for an hour and play the course without safety issues, it's a solid 3.0. But as it stands now I have to knock my rating down a full disc to a 2.0, and it feels like there should really only be 1.0 discs flying at a time on this course.
UPDATE NOVEMBER 2021: Just played the course for the first time in a year. I did not change my rating. As is, this course offers 18 fun short holes but there are lots of safety issues, both with DG'ers on adjacent holes and non-DG activities. I stand by my comments above about how it could be a nice 9-hole course. On this cold November day, no one else was in the park so I was able to 1) enjoy a safe round on the course as intended, then 2) dream up and play a 9-hole safari-style layout! I think that there is a really nice layout, as follows (all walking paths still play as OB):
Hole S1: Play from hole 1's tee to hole 2's basket. A nice starting hole as I guessed it would be above. Right side of the fairway is OB path/across path area for the first 150' or so, A nice drive here will get you to hole 1's basket, and fade off to the left for an easy approach and par. For a chance at birdie, bigger arms would have to throw an understable LHBH or RHFH and get a little lucky on the tight approach. 375'ish, par 3.
Hole S2: Play from hole 3's tee to hole 4's basket. Use the double mando from hole 3, and watch for players on hole S1. When you are only throwing 100', it's pretty easy to make it through that narrow gap 50' off the tee. Not so easy when trying to wind up with a real tee shot, eh? Steady curl to the left the entire distance, with OB path if your RHBH drive doesn't get enough hyzer. 300'ish, par 3.
Hole S3: Play from hole 5's tee to hole 6's basket. This is a lot like current hole 5 except that it is about 50' longer. Or you could try to throw it up the hill past hole 6's tee and follow that fairway around to the left. The middle is thickly wooded so it's kind of a multi-fairway hole here. 250', par 3.
Hole S4: Play from hole 7's tee to hole 9's basket. You'll throw out of a wide tree gap then it's a slight right turn and approach through the open field. An OB path runs across the fairway at the treeline. 350', par 3.
Hole S5: Current hole 10. No obstacles on this one, but it does play up a shallow incline and the basket is raised at the center of a rock formation. 350', par 3.
Hole S6: Current hole 11. Back down the incline. OB path behind the basket. 350', par 3.
Hole S7: The hole that 2 out of 3 DGCR Diamond-level reviewers are calling the signature hole on the course. Play from hole 12's tee to hole 13's basket. Use the mando as signed on hole 12. Hole 12 is my favorite on the current course. The mando tells you to keep left, but there's thick rough and a creek over there and the fairway curls to the right around it. If you get too much curl, there is another OB path. The basket for current hole 12 is only about 240' off the tee, but the fairway for DFrah's hole S7 continues to wind forward between the creek and path, then gives way to a thick grove of tree trunks as you approach the correct basket. 400'. I'm calling this a par 4, because I took a 5 both times I tested it.
Hole S8: Play from hole 15's tee to hole 17's basket. Just when you are trying to catch your breath after hole S7, you walk up to hole S8's tee. This is a true water hole, with a deep pond lurking along the entire left side of the fairway. You tee off from the top of a small hill, and the shortest path from tee to basket crosses the edge of the pond from about 225'-250' off the tee. Can you clear it? 325', par 3.
Hole S9: Current hole 16. An uphill ace run with no obstacles. But hey, who doesn't like to end the round with a birdie or ace? 225', par 3.
Practice basket at current hole 18's basket.
My best score trialing this layout: +3
This 9-hole layout would be much more challenging and interesting for any DG'ers beyond recreational level. More importantly, it would be a much safer course. This layout completely eliminates the largest current safety concerns (throws near a restroom building and pickleball court), and greatly reduces the cramped feel and chance of tee shots hitting other players. There are still walking paths in play but nothing nearly as egregious. If this layout was implemented (along with refreshed infrastructure, etc.) I would give it about a 3.0 rating despite being only 9 holes. If you are amused and play my suggested layout, please DM me and let me know what you thought and how you did.