We're planning a 10-day trip to Texas Sept. 23-Oct. 3. We've never been to Texas but have read how authentic and original HIll Country is and wondered if you would recommend that as the place to go. Though we're in our 60s, we're in great shape and love to hike. Since we've never been to Texas, we're anxious to see it and experience interesting and unusual attractions. We're not into shopping. We're flying in from the East Coast and plan to rent a car. Any suggestions on where to fly into, and places to see would be greatly appreciated. We usually stay in b&bs or we've been very successful with airbnb. Our budget is moderate. Thank you for any advice you could give.