Tunnel Tour & NASA Space Center Ticket with Transport
About This Experience
Get the best of Houston above and below ground in one full day. This best-value combo pairs general admission and round-trip transport to Space Center Houston with a complimentary guided walking tour of downtown's remarkable underground tunnel system — the largest of its kind in the United States.
You'll be shuttled the 35–60 minutes to the Space Center and arrive within an hour of opening, giving you about five hours to explore Independence Plaza, the International Space Station gallery, Rocket Park, and the Mission Mars and Artemis exhibits, plus the included NASA Tram Tour. Your guide shares tips to help you make the most of the visit.
Back downtown, walk the climate-controlled tunnels beneath Houston's skyline, stopping for photos alongside award-winning architecture — the tallest building in Texas, the original Texas skyscraper, and the oldest existing bank in the city. It's the ideal way to see Houston's underground city and its most iconic attraction in a single day. On holiday weeks, the Space Center is visited first and the tunnel tour follows.
Highlights
- Space Center Houston admission plus a guided downtown tunnel tour
- Comfortable round-trip transport to the Space Center
- About five hours to explore NASA at your own pace
- Walk the largest downtown tunnel system in the USA
- Photo stops at Texas's tallest skyscraper and the city's oldest bank
What's Included
- ✓ General admission ticket to Space Center Houston
- ✓ Round-trip transfer from the downtown meeting point
- ✓ Air-conditioned transportation
- ✓ About five hours of free time at the Space Center
- ✓ Guided walking tour of Houston's tunnel system
- ✓ Access to iconic Houston skyscraper lobbies
Not Included
- Food and drinks
- Gratuities (optional)
- Historic Mission Control Tram Tour (contact the operator in advance)
What to Bring
- Comfortable walking shoes and clothes
- Refillable water bottle
- Your mobile voucher
Good to Know & Caveats
- On holiday weeks, guests visit the Space Center first and do the tunnel tour after returning.
- Tram tours at the Space Center are subject to availability, determined by NASA based on season and staffing.
- In the event of bad weather, you may reschedule free of charge at your discretion.
- Children under 6 are welcome but require their own valid ticket.
Not Suitable For
- Wheelchair users
- Babies under 1 year
Meeting Point
Outside the Bank of America Tower on the Capitol St. side, by the colorful Miró sculpture. Restrooms are available on the tunnel level if you arrive early.
What Travelers Say
Rated 4.9/5 by 69 verified GetYourGuide travelers.
A great day out. Vanessa told us all about the underground tunnel system, which was amazing to see, then NASA was incredible at our own pace. 10 out of 10.
— Brian, 2025-08
We had five hours to explore the Space Center at our leisure, then a tour of the underground tunnels. Our guide Vanessa was so helpful and full of knowledge.
— Kim, 2025-04
Diana was an amazing, very knowledgeable guide about Houston and the tunnels. Really enjoyed NASA too.
— Robyn, 2025-09
Frequently Asked Questions
What is the tunnel tour?
It's a complimentary guided walk through downtown Houston's climate-controlled underground tunnel system — the largest in the U.S. — with photo stops at the city's most iconic architecture, paired with your NASA visit for a full day out.
How much time do I get at the Space Center?
About five hours to explore independently, including the included NASA Tram Tour if you pick up a boarding pass early. Transport there and back is included.
What's the order of the day?
Usually the Space Center first, then the tunnel tour — and on holiday weeks that order is standard. Your guide confirms the plan at check-in.
