Check out this one-year membership at Mass Audubon, the largest nature conservation nonprofit in Massachusetts. No expiration date.

From their website: "Mass Audubon protects more than 38,000 acres of land throughout Massachusetts, saving birds and other wildlife, and making nature accessible to all. As Massachusetts’ largest nature conservation nonprofit, we welcome more than a half million visitors a year to our wildlife sanctuaries and 20 nature centers. From inspiring hilltop views to breathtaking coastal landscapes, serene woods, and working farms, we believe in protecting our state’s natural treasures for wildlife and for all people—a vision shared in 1896 by our founders, two extraordinary Boston women."

https://www.massaudubon.org/