Area guides
For travellers
Boulder
Boulder, Colorado, United States
Where Boulder sits, what to see there, and what to book.
- Top sights
- 8
- Bookable experiences
- 51
- Time zone
- America/Denver
Boulder sits in Colorado, and this guide is the shape of it: where it is, what it breaks down into, and what there is to do once you are there. The sights below are ordered by how many tours and tickets are sold for them, which is the closest thing there is to a ranking of what visitors actually go and see. There are 51 bookable experiences here in total, with prices, durations and cancellation terms on every card.
USA › Colorado › Boulder
What to see in Boulder
Ordered by how many tours and tickets are sold for each — the closest thing there is to a ranking of what visitors actually go and see.
Sample itineraries for Boulder
Built from this guide: the sights in the order visitors book them, the areas with a catalogue of their own, and places within day-trip range. A starting shape, not a researched route — check opening hours before you go.
One day in Boulder
Boulder's most-visited sights
- 1
Day 1
Boulder's most-visited sights
- MorningPearl Street Mall11 tours & tickets sold for it.
- MiddayFlatirons11 tours & tickets sold for it.
- AfternoonUniversity of Colorado Boulder10 tours & tickets sold for it.
- Book aheadRocky Mountain National Park Guided Small Group TourTakes about 8 hours.
2 days in Boulder
Boulder's most-visited sights · More of Boulder's top sights
- 1
Day 1
Boulder's most-visited sights
- MorningPearl Street Mall11 tours & tickets sold for it.
- MiddayFlatirons11 tours & tickets sold for it.
- AfternoonUniversity of Colorado Boulder10 tours & tickets sold for it.
- Book aheadRocky Mountain National Park Guided Small Group TourTakes about 8 hours.
- 2
Day 2
More of Boulder's top sights
- MorningBoulder Creek Path10 tours & tickets sold for it.
- AfternoonBoulder Theater6 tours & tickets sold for it.
- Book aheadDiscover Rocky Mountain National Park-Small Group Tour & PicnicTakes about 8 hours.
3 days in Boulder
Boulder's most-visited sights · More of Boulder's top sights · Day trip to Denver
- 1
Day 1
Boulder's most-visited sights
- MorningPearl Street Mall11 tours & tickets sold for it.
- MiddayFlatirons11 tours & tickets sold for it.
- AfternoonUniversity of Colorado Boulder10 tours & tickets sold for it.
- Book aheadRocky Mountain National Park Guided Small Group TourTakes about 8 hours.
- 2
Day 2
More of Boulder's top sights
- MorningBoulder Creek Path10 tours & tickets sold for it.
- AfternoonBoulder Theater6 tours & tickets sold for it.
- Book aheadDiscover Rocky Mountain National Park-Small Group Tour & PicnicTakes about 8 hours.
- 3
Day 3
Day trip to Denver
- Early startHead to DenverAbout 39 km from Boulder — its own guide has what to see there.
5 days in Boulder
Boulder's most-visited sights · More of Boulder's top sights · Day trip to Denver · More of Boulder's top sights · Day trip to Estes Park
- 1
Day 1
Boulder's most-visited sights
- MorningPearl Street Mall11 tours & tickets sold for it.
- MiddayFlatirons11 tours & tickets sold for it.
- AfternoonUniversity of Colorado Boulder10 tours & tickets sold for it.
- Book aheadRocky Mountain National Park Guided Small Group TourTakes about 8 hours.
- 2
Day 2
More of Boulder's top sights
- MorningBoulder Creek Path10 tours & tickets sold for it.
- AfternoonBoulder Theater6 tours & tickets sold for it.
- Book aheadDiscover Rocky Mountain National Park-Small Group Tour & PicnicTakes about 8 hours.
- 3
Day 3
Day trip to Denver
- Early startHead to DenverAbout 39 km from Boulder — its own guide has what to see there.
- 4
Day 4
More of Boulder's top sights
- MorningChautauqua Park6 tours & tickets sold for it.
- AfternoonFolsom Field5 tours & tickets sold for it.
- Book aheadOriginal eBike Tour - Best of Boulder - guided Bike TourTakes about 2.5 hours.
- 5
Day 5
Day trip to Estes Park
- Early startHead to Estes ParkAbout 46 km from Boulder — its own guide has what to see there.
A week in Boulder
Boulder's most-visited sights · More of Boulder's top sights · Day trip to Denver · More of Boulder's top sights · Day trip to Estes Park · Day trip to Fort Collins · Day trip to Breckenridge
- 1
Day 1
Boulder's most-visited sights
- MorningPearl Street Mall11 tours & tickets sold for it.
- MiddayFlatirons11 tours & tickets sold for it.
- AfternoonUniversity of Colorado Boulder10 tours & tickets sold for it.
- Book aheadRocky Mountain National Park Guided Small Group TourTakes about 8 hours.
- 2
Day 2
More of Boulder's top sights
- MorningBoulder Creek Path10 tours & tickets sold for it.
- AfternoonBoulder Theater6 tours & tickets sold for it.
- Book aheadDiscover Rocky Mountain National Park-Small Group Tour & PicnicTakes about 8 hours.
- 3
Day 3
Day trip to Denver
- Early startHead to DenverAbout 39 km from Boulder — its own guide has what to see there.
- 4
Day 4
More of Boulder's top sights
- MorningChautauqua Park6 tours & tickets sold for it.
- AfternoonFolsom Field5 tours & tickets sold for it.
- Book aheadOriginal eBike Tour - Best of Boulder - guided Bike TourTakes about 2.5 hours.
- 5
Day 5
Day trip to Estes Park
- Early startHead to Estes ParkAbout 46 km from Boulder — its own guide has what to see there.
- 6
Day 6
Day trip to Fort Collins
- Early startHead to Fort CollinsAbout 65 km from Boulder — its own guide has what to see there.
- 7
Day 7
Day trip to Breckenridge
- Early startHead to BreckenridgeAbout 88 km from Boulder — its own guide has what to see there.
Plan your trip
Ready to plan Boulder?
Build your own day-by-day plan with our AI guide — real places, maps and photos you can rearrange — or start from one of our editors' researched itineraries.
Near Boulder
Other destinations we publish within a few hours of here, closest first.
What travellers book in Boulder
The experiences Viator ranks highest here, with the price, the duration and the cancellation terms on every card.
Book on Viator
Free cancellation
Instant confirmation
Rocky Mountain National Park Guided Small Group Tour
4.9 (436)8h
Explore towering alpine peaks, high-elevation tundra, abundant wildlife, and Colorado’s most celebrated national park—all in one expertly guided day. Begin in Boulder, framed by the iconic Flatirons, before traveling…
from $179 / personView details
Book on Viator
Free cancellation
Instant confirmation
Discover Rocky Mountain National Park-Small Group Tour & Picnic
4.9 (3,501)8h
Climb from the streets of the "Mile High City" to Rocky Mountain National Park, on a day trip that showcases the rugged beauty of Colorado's mountains. Weave through small, historic towns and drive over alpine passes,…
from $215 / personView details
Book on Viator
Free cancellation
Original eBike Tour - Best of Boulder - guided Bike Tour
4.9 (252)2h 30m
The original and best electric fat tire bike tour of the “Happiest City in America". A sensational guided adventure of all the gems of Boulder on the most fun and easy-to-ride thing on two wheels. Soar alongside…
from $105 / personView details
Book on Viator
Free cancellation
Instant confirmation
Best of Boulder E-Bike Tour
5.0 (387)2h 30m
There is something different about Pedego Boulder. From the minute you arrive you will know you chose the best tour company in Boulder as you are greeted with friendly faces and our exceptional hospitality. Whether you…
from $103.53 / personView details
Book on Viator
Free cancellation
Instant confirmation
Rocky Mountain National Park Tour and Picnic
5.0 (32)7h 30m
Experience Rocky Mountain National Park on this personalized, small-group tour. NO PARK RESERVATIONS NEEDED! We handle all park entry logistics so you can relax and enjoy the day. Departing from Boulder, travel in a…
from $199 / personView details
Book on Viator
Free cancellation
Instant confirmation
E-Bike Guided Tour in Boulder, Colorado
4.9 (52)2h 30m
Come Ride Boulder's all-in-one best of everything Boulder, CO tour. Ride to all the breathtaking sights, both scenic and historic. Enjoy Boulder's natural beauty, and see the whole town, including all the major…
from $100 / personView details
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Sights, areas and experiences here were last checked 2026-09-13.
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