4 days in Boulder Itinerary

Located in the foothills of the Rocky Mountains, Boulder is a busy college town known for its progressive values and natural resource conservation.

Your inner history buff will appreciate Wild Basin Area and Chapel on the Rock. Eschew the tourist crowds and head to Emerald Lake Trail and Guanella Pass. Explore the numerous day-trip ideas around Boulder: Summit Lake Park (in Idaho Springs) and Rocky Mountain National Park (Many Parks Curve Overlook, Old Fall River Road, & more). There's still lots to do: identify plant and animal life at Butterfly Pavilion and Insect Center, stroll through Mount Sanitas Trail, trek along Royal Arch, and sample the tasty concoctions at Avery Brewing Company.

To see traveler tips, more things to do, and tourist information, use the Boulder trip itinerary planning tool .

Expect a daytime high around 66°F in October, and nighttime lows around 41°F. Finish up your sightseeing early on the 6th (Sun) so you can travel back home.