Aptraveler: I would say that especially on a sunny day, just park the car nearby and make your way to this place, so as to enjoy the fountains' beautiful design and the tranquility that they generate!
PedalHouston: Miles of winding trails. Make sure you have a bike with tires that can handle some of the mixed terrain if you're riding your bike. Great elevation changes here and a nice view of the city.
Anna Montanaro: All the waiting around and the fowl smell was worth it! Really cool free activity. Saw lots of fish, turttles, two snakes and even a beaver in the river below.