Luna says that your effort is more than perfectly ordinary!
These Hagrid-sized turtles were designed and sculpted by Bob Cassilly (creator of the City Museum) and the park opened in August 1996 (the same year we started Dumbledore’s Army!) Apparently it includes a snapping turtle, a soft-shelled turtle, a red-eared slider, a Mississippi map, three box turtles and a stinkpot turtle.
This park even has its own documentary, which reminds me of a Muggle TV show called Parks and Recreation. Here’s a clip.