Horry County Bike & Run Park — Attraction in South Carolina

Given bionic body parts and age, I am mostly a walker now, though did 10Ks and a few marathons many years ago. HULK is a great fitness and recreation resource for both local residents and vacationers. We live nearby and my dog and I just began exploring what's there this past week. We both love it. Would like a little more information about the trails that are best for walkers/hikers. I avoid the ones marked "BIKE" but it seems that even some marked "RUN" might be a bit risky for walkers. I did discover a woodsy trail down near markers for the Florida-to-Maine Greenway that seemed well-suited for hiking. (Lot of roots in trail might make it problematic for runners.) Anyway, some specific info/suggestions for walkers...

Surprisingly fun set of mtbing trails right next to the Intracoastal Waterway. Riding everything gave me just over 8 miles. The bike trails are one direction. Runners come towards you in the other direction. This appears to be an old sand pit location. The trails run the perimeter and drop in and out of the pits, offering plenty of short climbs and lots of twisty curves. The north side of the park features trails crawling up and down a wooded hillside. The climbs are short and steep. The drops are too. The twisties are nonstop, so you'll get a good workout in from having to pedal and working the curves. Definitely worth a visit. I visited in early April, so the heat and bugs weren't an issue. Would be more challenging...

For trail running, this is an amazing find while I was vacationing down at Myrtle Beach. The parking lot was under construction while I was visiting, but there were some small signs for parking along the road and a temporary entrance setup.

It's not a lot of elevation per Strava (~200 ft total for the 7mi loop), but the technical terrain and tight turns really makes up for it. Everyone I saw while running the loops were friendly. Overall great park for getting in some trail miles!

Only complaint: poor marking and almost no blazing. It'd also help to have some trail map signage on the course at key...