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All county government administrative offices are open to the public. County government employees and visitors will not be required to wear masks. Verify office locations and hours before visiting.

Registration Information

Registering Online is the primary method for registering. Go the the event and click the "Register" and follow the instructions. Phone reservations are not accepted

IMPORTANT: To register as a member, you must Login Registration. Please do not register another family's child (although grandparents are considered family!) If you are their legal guardian you can register an unrelated child.



Registration for programs for each month opens for Members (nonmembers) 

  • Programs in January: 11/7 (11/21)
  • February: 12/7 (12/21)
  • March: 1/7 (1/21)
  • April: 2/7 (2/21)
  • May: 3/7 (3/21)
  • Summer Camp: 3/7 (3/21)
  • June: 4/7 (4/21)
  • July: 5/7 (5/21)
  • August: 6/7 (6/21)
  • September: 7/7 (7/21)
  • October: 8/7 (8/21)
  • November: 9/7 (9/21)
  • December: 10/7 (10/21)


Many of our programs fill quickly and have waitlists. If you need to cancel your registration, please call 410-535-5327 or email

Weather Policy. Most programs are held rain or shine. If Calvert County schools or government are closed due to weather, programs are canceled. If there is a delayed opening, morning programs are canceled. We try to post cancellations as timely as possible.

Cancellations Due to Illness. In most cases, full refunds will be issued when participants must cancel due to illness. We reserve the right to withhold a portion of the registration fees for non-recoverable fees.

Refund Policy

If Calvert Nature Society or Calvert County cancels the program, a full refund will be given.

When a participant cancels at least a month  before the program, the Society will refund payments  for program fees over $10, less  a $5 administrative fee; Program fees of $10 or less will not be refunded. We reserve the right to withhold a portion of the registration fees for non-recoverable fees.

Summer Camp Refunds: Refunds will not be issued for incomplete registration. Refunds, less a $25 administration fee, will be issued when cancellations are received in writing 30 days before camp start date. Refunds will not be issued due to partial attendance in a camp. We reserve the right to withhold a portion of the registration fees for non-recoverable fees.

Refunds are available only for transactions involving the purchase of goods and services. Donations or dues payments are not refundable.

For general questions: (will receive a response during business hours). Most programs do not allow for email registrations.

For Programs at Flag Ponds Nature Park: Program participants do not need to pay the entrance fee on the day of the program. The entrance fee will be required on any other visit to the park.

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