There is actually a GREAT place in Richardson that I am shooting at this weekend. It's at prairie creek park- its towards the the end of prairie creek dr and collins blvd. there is an absolutely beautiful waterfall! I had the kids stand on the rocks above the waterfall and the helped them down into the creek. It was an awesome place! I was able to supervise a 5 yr old and a 1 yr old on my own so I would say it's safe!
There is also an office complex off 75 and a little side street called palisades (before campbell road) there is a small bridge, a waterfall and cool places to take pictures. They post to stay off the rocks but if you go on a weekend you'll be fine! Its much smaller and subtle than the prairie creek waterfall.
here's a few pics I took!
Prairie Creek:
Office:
