I second the importance of booking reservations for Big Bend immediately-- my family goes there every year for Christmas, and in order to get reservations, we have to book A YEAR in advance.
Also, people are not exaggerating about how long a drive it will be from Big Bend to anywhere else. It`s an eight hour drive from Big Bend to Austin, for example.
For other places to see, I`d recommend:
McDonald Observatory in Fort Davis-- tour a world-class observatory, and I think they also host stargazing nights.
Paisano Pete in Fort Stockton–giant sculpture of a roadrunner.
I second the Gage Hotel in Marathon.
Enchanted Rock State Natural Area, near Fredricksburg–hike to the top of a giant granite dome.
Pedernales Falls State Park, near Johnson City-- Pedernales River cuts through a series of hard limestone shelves. Nice hiking.
Coopers BBQ in Llano--best BBQ you will ever have. Seriously, don
t miss this!
Smittys, Kreuz
s, Black`s, Chisholm Trail in Lockhart-- FOUR world-class BBQ places in the same town. It is truly a thing of wonder.
Mi Tierra restaurant, in San Antonio-- amazing Mexican food and atmosphere.
South Congress Avenue in Austin-- Excellent collection of funky and offbeat stores.
Chuy`s, in Austin-- Delicious Tex-Mex and Keep Austin Weird
atmosphere.
Wildseed Farms, in Fredricksburg-- A wildflower seed farm.
If you want more to do in Austin, or hike recommendations for Big Bend, let me know and I will make a list.