REGISTRATION REQUIRED
Registration closes April 19, 2026

Join the Chesapeake Bay Foundation for a day of reef ball building! Reef balls are hollow, concrete domes pocked with holes that are used to create vertical structure habitat for oysters and many other species. Volunteers will assist CBF staff by assembling and disassembling fiberglass molds. These reef balls provide instant habitat when placed into the water, which only improves once oysters attach themselves to the structure creating a true reef. Oysters are not only incredible filters in the Bay and its tributaries but they provide beneficial habitat to many other aquatic organisms. These reef balls will be deployed on a designated restoration site at a later date.

This activity involves kneeling, lifting and bending.

Please keep in mind that we will be limiting the number of volunteers who can participate in this event. Only register if you sincerely intend to participate on the day of the event. If you find that your schedule or health prevents you from being able to attend, please notify us immediately so we can recruit another volunteer in your place.

We’re committed to making our events accessible to everyone. If you need any accommodations to participate, please reach out to This e-mail address is being protected from spambots. You need JavaScript enabled to view it . We will do our best to meet your needs.

Your registration includes periodic email updates from CBF. You may unsubscribe at any time by clicking "Unsubscribe" at the bottom of any email you receive from us.