Oyster Restoration Event RegistrationRegister Now


What are reef balls?

Oyster reef ballsPhoto by CBF Staff

These concrete spheres with holes provide valuable marine habitat for critters—mostly oysters! 

Reef ball construction events consist of two stages:

  1. Reef Ball Building—we first build approximately 30 reef balls using fiberglass molds and concrete.
  2. Reef Ball Breakdown—after the molds and concrete have cured, we "hatch" open those reef ball molds and organize materials for the next event.


Help restore the Chesapeake's native oyster population by constructing concrete reef balls that will serve as habitat for oysters, fish, blue crabs, and other critters.

Reef ball construction consist of two stages:

  1. Building approximately 30 reef balls using fiberglass molds and concrete; and
  2. Breakdown or "hatching" open of those reef ball molds and organizing materials for the next event.

Some days may include both, some may include just one.

Dress appropriately—gloves, boots, and clothes that can get wet and dirty—as this is an outdoor event.

Older children and teenagers welcome with adult supervision.

Following the reef ball festivitites, a CBF staff member will provide a tour of the Oyster Restoration Center in Shady Side, MD.

This event will happen rain or shine, but extreme weather conditions may cause the event to be canceled or rescheduled. You will be contacted via e-mail and/or phone in the event of a cancellation.

Please contact Pat Beall at pbeall@cbf.org or 443-482-2065 with questions.



Please register below if you plan to join us so that we may accurately plan for these events.

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Event Selection
9:00 a.m.-3:00 p.m.
Friday, April 28, 2017 at 9:00 AM
9:00 a.m.-3:00 p.m.
Saturday, April 29, 2017 at 9:00 AM
9:00 a.m.-1:00 p.m.
Sunday, April 30, 2017 at 9:00 AM

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