Four concrete oyster castle blocks with heavy growths of oyster shells on their exteriors. A white pole displays a yellow triangular sign announcing this is an oyster sanctuary.
Oyster castle research sign Oyster castles can help protect vulnerable shorelines by taking the punch out of storm waves. © Daniel White / The Nature Conservancy

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Oyster Castle Installation


Eight volunteers are needed each day to help move and assemble oyster castle blocks to build functional oyster habitat that will be capable of keeping up with sea level rise.

Volunteers will be moving 30-pound concrete oyster castles blocks for 3-5 hours. This is labor intensive work that requires volunteers to spend most of the day outside, on the water, in varying depths, with a firm bottom composed of loose shell. Most importantly, volunteers must be able to repeatedly move 30-pound concrete oyster castle pieces. Wearing waders is recommended.


  • March 25 from 11:00 am - 3:00 pm 
  • March 29 from 12:00 - 4:00 pm  
  • March 30 from 12:30 - 4:40 pm  
  • April 26 from 12:00 - 4:00 pm 
  • April 27 from 12:00 - 4:00 pm 

To sign up, contact Jen Dalke, volunteer program manager, at, 540-335-1302 (c). Volunteers must read and sign our COVID field guidelines and health screening questions. Guidelines include having a mask readily accessible if working less than 6' apart, bringing hand sanitizer and confirming you have health insurance.