When I come back to Texas I will definitely include Parr Park. It is about 10 minutes away from Grandma and Grandpa's house. It has a ton of trails, two huge fields (one full size baseball and one full size soccor) and really cool playground equiptment.
Here are some pictures of the 'spider-web'. It was so cool that Abby spent about one hour on it alone. This park has bathrooms and drinking fountains. The trails that I went on were paved. It really seems like it would be a great family place for a wide variety of ages and activites. It is located off of Parr Park Lane in Grapevine Texas. Super cool place to visit.