Hours are subject to change. Hours below are 7 days/week. See the Special Event Schedule PDF for scheduled closures due to events. Swimming hours and information
Reservoir Hours 2023
|January||10 a.m. - 3 p.m.||3 p.m.||4 p.m.||CLOSED||CLOSED|
|New Year's Day||CLOSED|
|February||10 a.m. - 3 p.m.||3 p.m.||4 p.m.||CLOSED||CLOSED|
|March||10 a.m. - 4 p.m.||4 p.m.||5 p.m.||CLOSED||CLOSED|
|April||9 a.m. - 5 p.m.||5 p.m.||6 p.m.||CLOSED||CLOSED|
|May 1-25||9 a.m. - 5 p.m.||5 p.m.||6 p.m.||CLOSED||Rental info + reservations|
|May 26 - Aug. 20||6 a.m. - 8 p.m.||8 p.m.||9 p.m.||10 a.m. - 6 p.m.||Rental info + reservations|
|Aug. 21 - Sept. 4||6 a.m. - 8 p.m.||8 p.m.||9 p.m.||Swim Hours||Rental info + reservations|
|Sept. 5 - 30||9 a.m. - 6 p.m.||6 p.m.||7 p.m.||CLOSED||Rental info + reservations|
|October||9 a.m. - 6 p.m.||6 p.m.||7 p.m.||CLOSED||CLOSED|
|November||10 a.m. - 3 p.m.||3 p.m.||4 p.m.||CLOSED||CLOSED|
|December||10 a.m. - 3 p.m.||3 p.m.||4 p.m.||CLOSED||CLOSED|
|New Year's Eve||CLOSED|
No Wake Hours*
|April 1 - May 25||Tu, Th, Su: 9 - 11 a.m.||Th: 3 - 5 p.m.|
|May 26 - Sept. 4||Tu, Th, Su: 6 - 10 a.m.||Th: 4 - 8 p.m.|
|Sept. 5 - Oct. 31||Tu, Th: 9 - 11 a.m.
Su: 9 a.m. - noon
|Th: 4 - 6 p.m.|
*We allow the EXPAND Beyond, Inc. program to occasionally run during no wake hours beginning in mid-June to provide accessible water sports to athletes with physical disabilities.
Daily Access Fees for April 1 - May 25 and Sept. 5 - Oct. 31
Daily Access Fees for May 26 - Sept. 4
Twilight Entry: 6 p.m. - close. $5 individual/$10 carload
|Ages||Daily entry Fee||Resident/Worker* rate|
|Sustainability Discount**||25% off||
Reservoir Only Annual Pass (Jan. 1 to Dec. 31)
If you purchase the Reservoir Only Pass along with your boat permit renewal, you’ll receive the following number of visitor vouchers:
- Small craft permit + Reservoir-only pass: 3 entry vouchers
- Large craft permit + Reservoir-only Pass: 5 entry vouchers
This promotion is valid through February 28, 2023.
|Ages||pass Fee||Resident/Worker* rate|
Rate reflects a discount rate for those who either live, or are paid employees of businesses or organizations, within the city limits of Boulder. If you need help determining your fee status speak with our team members at the front gate. Adult proof of residence/worker status required.
**Sustainability Discount: (for pedestrians, cyclists, and cars with 3 or more.)
25% off each high season regular price entry fee.
Any adults, seniors or youth residing at the same address. Anyone 19 years old and over must provide proof of same address residence (sorry, no exceptions).The package must include at least 1 members aged 19 or older. The package may not include more than 8 members aged 19 or older.
Rain Check/Refund Policy: No rain checks will be issued unless a facility is closed due to weather for two or more consecutive hours. No rain checks will be issued after 5 p.m. We do NOT offer refunds for any reason.
Daily entry fees will be charged April 1 through Oct. 31, 2023. Each person entering the park must pay the entrance fee. Fees are collected for each person entering Boulder Reservoir including runners, walkers and cyclists.