How do you like your oysters? The Wellfleet Bay Wildlife Sanctuary offers several multi-day field schools, including one titled The Nature, Culture, & Harvest of Shellfish. The school runs July 29-Aug. 1, and offers total immersion, from learning mollusk life histories and biology to identifying and understanding how oysters, mussels, quahogs, snails, and clams fit into the coastal ecosystem.
Field school: $295 Mass. Audubon members, $320 nonmembers. Boat trip: $40 members, $45 nonmembers ($10 less for children ages 3-12). Route 6, South Wellfleet, 508-349-2615. www.massaudubon.org, choose Wellfleet Bay from Find a sanctuary dropdown menu.