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Boulder Reservoir — Boulder, Colorado
Boulder Reservoir in Boulder: best for ages 3-5, 6-8, 9-12, 13-17; $12 per person · $20 for two people (same vehicle) · $30 carload (up to 5).
Address5565 N 51st St, Boulder, CO 80301
HoursSeasonal hours - Nov-Dec entry gate 10am-3pm; late May-mid-Aug 6am-8pm; swim beach Memorial Day-Labor Day only (closed for the season until late May)
Prices$12 per person · $20 for two people (same vehicle) · $30 carload (up to 5)
Price notesCity entry fees are in place mid-April-mid-October; youth (2-17) pay the same $12. All watercraft, including SUPs and kayaks, need a City small-watercraft permit.
Age notesSwimming beach (in season), boating and shoreline play; youth entry pricing covers ages 2-17
Suggested timeAbout 3 hours
Official website ↗ · Directions ↗
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Venue details last verified October 31, 2026 against official sources. Hours and prices change — check the official site before you go. FamilyDay AI is a free planning tool for parents; we list only facts we have verified, and we never invent ratings or reviews.