Massachusetts has lost about a quarter of its cranberry farms in the last decade. Instead of selling their farm to the highest bidder, this Plymouth couple teamed up with the state and Mass Audubon to restore their bog to its original state.

NEEDHAM, Mass. —

Tidmarsh in Plymouth is the largest freshwater restoration project ever in the northeast, now a Mass Audubon sanctuary.

Tidmarsh Living Observatory offers interactive website, chock-full of data, videos, and sound.