Over Two Miles of Shoreline and Habitat Protected
by Spencer Busler I Associate Director
We are proud to announce the permanent conservation of Cherry Island, a prominent and ecologically significant island in Chaumont Bay, Lake Ontario. The property will be known as The Cosgrove Nature Preserve on Cherry Island, honoring the Cosgrove family’s long-standing stewardship and commitment to protecting this cherished natural space.
The Preserve encompasses approximately 126 acres and features more than 13,000 feet of undeveloped shoreline—a rare and increasingly valuable resource in a region renowned for its fishing, wildlife, and water quality. Once used as farmland, the Island has naturally regenerated into a dense, young forest, now providing critical habitat for wildlife, including an active Bald Eagle nest.
Situated between Pillar Point, Point Peninsula, and Point Salubrious, Cherry Island is a vital stopover for migratory birds traveling the Atlantic Flyway, offering essential rest and nourishment. Its conservation also supports the health of Chaumont and Guffin Bays, helping sustain a thriving recreational fishery and safeguarding multiple public drinking water intakes.
The Cosgrove family’s deep connection to the land and their vision for its future ensure that this beloved landmark will remain a haven for nature forever.
Partnerships in Conservation
Through a strong partnership with the Ontario Bays Initiative Land Trust (OBI), the Preserve will be thoughtfully managed, to maintain its natural character for generations. Cherry Island, home to a historic light station guiding boats around nearby shoals, remains a tranquil, cherished landmark on the Lake Ontario horizon. “It is an honor to partner with TILT to conserve Cherry Island, a constant, beloved treasure for those of us lucky enough to live along the shores of Eastern Lake Ontario,” said Rosanne Weir, President of OBI Land Trust.
The Preserve protects the nearshore, or littoral, zone—the most biologically productive part of the aquatic system. Most aquatic and shoreline species rely on these natural habitats at some point in their life cycle. Yet these areas are increasingly rare, with significant losses from heavy shoreline development.
“The Cosgrove Nature Preserve on Cherry Island protects over two miles of natural shoreline in a part of Lake Ontario where conservation is especially important. Its natural beauty, visible from countless homes and cottages, is now permanently safeguarded,” said Jake Tibbles, Executive Director of TILT.
This project is truly one of the most meaningful conservation successes in Eastern Lake Ontario in recent years, securing long-term protection for a rare and ecologically significant Island.
TILT and OBI Land Trust are proud to work together to ensure this iconic Island remains undeveloped, while making a lasting investment in wildlife and their habitat, water quality, and the scenic character of the Lake Ontario shoreline forever.