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Boulder Reservoir Hours and Fees

Gate Hours

Hours subject to change.

January and February

  • Incoming gate opens: 9 a.m. - 3 p.m.
  • Outgoing gate closes: 4 p.m.


  • Incoming gate opens: 9 a.m. - 4 p.m.
  • Outgoing gate closes: 5 p.m.


  • Incoming gate opens: 8 a.m. - 5 p.m.
  • Outgoing gate closes: 6 p.m.

Swim Beach closed.

Entry Fees

Entry fees are charged Memorial Day through Labor Day.  Each person entering the park must pay the entrance fee noted in the fee chart below. Fees are collected for each person entering Boulder Reservoir including runners, walkers and cyclists. Additional fees are charged for boat permits.

Age Fee
Youth (3 to 18) $4
Adult (19-59) $7
Senior (60+) $5

See the Splash Pass for information on a summer season pass to Boulder Reservoir along with the outdoor pools.

  • Enforcement: All visitors must comply with all park rules and all swimming and boating regulations. Boulder Police will be on site at times to help enforce park regulations and provide public safety and service as needed.
  • 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.


If you are bringing a boat to Boulder Reservoir it must have a valid boat permit. ONLY small craft permits are available for purchase on-site year-round.

Quiet Hours

All watercraft on Boulder Reservoir must remain wakeless with the exception of city-sanctioned activities and lake patrol operations.

  • Tuesday 5:30 a.m. -  noon
  • Wednesday 5:30 a.m. - 9 a.m.
  • Thursday 5 pm - 9 p.m.


Dogs are not allowed in the park May 15 through Labor Day.

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