Definitely plan to spend several hours here. Even after multiple visits I'm still discovering new things. The attention to detail is amazing and you can interact with nearly every part of the exhibit.
Love this place. Try to go there for sunrise or sunset. Breath taking view. Buy sledge from visitor center if you want to play in sand. Store buy back sledge once you are done using.
Fun place to visit, buy a beer from the lobby gift shop, and hang out - even if you're not staying there.
Incredible curation of books, tchotchkes, and other bits. One of the better reasons for being in Texas.
