This is a popular area for kid-friendly hiking and mountain biking. There are multiple trailheads to this area, in addition to the one shown on this page. This route goes north on Flagler Trail to the river, and then loops around back to Flagler, and then back to the parking area.
There are many other trails near the river if you wish to extend your hike. Beware this hike can be muddy after a good rain!