Before I start my review, let me just say that there is NO PARKING at Mayde Creek. You'll have to park along one of the streets in the adjacent subdivision and walk to the park.
OK, Mayde Creek Hike And Bike Trail is an interesting example of how the Harris County Parks and Recreation service has collaborated with Harris County Flood Control to increase the functionality of public land. The primary purpose of this area is to create large dug out reservoirs to hold water when it floods. That's Flood Control's contribution. Within the reservoirs live HUNDREDS of turtles. There is no gate around preventing access down into the reservoir, but there are signs saying it is a restricted area. Harris County Parks and Recreation job is to maintain the areas along the reservoir border. Hence, the Hike and Bike Trail.
The paved trail is long enough to let you stretch your legs and the large number of turtles keeps the view interesting. Turtles are very bashful creatures so they will make a dash into the water if they see you before you see them. If you want to photograph them, a zoom or telephoto lens is recommended.
You can follow the Mayde Creek Hike and Bike Trail all the way to where it joins Cullen Park.