1 Island 3LM Island, Gravenhurst, Ont.
Lake: Lake Muskoka
Bedrooms: 3
Bathrooms: 1
Lot size: 2 to 4.99 acres
List price: $1,375,000
Date listed: August 16, 2025
Realtor: Becky Spencer and Rosemary King
If you’ve ever wanted to own a true piece of Muskoka history, now’s your chance. Lighthouse Island—a 2.39-acre island in the Gravenhurst Narrows on Lake Muskoka—is for sale for the first time in over 100 years. Accessible by a 10-minute boat ride from Lakeshore Landing Marina, the original three-bedroom, one-bathroom cottage was built in 1911. Part of the island was previously purchased by the federal government to be used for a navigational lighthouse that is still partially in use today. The island features a sandy cove, untouched shorelines, and 360-degree views of the lake. There are plenty of opportunities to restore the property to its former charm and celebrate its heritage. A new survey is also available for more information on the land.
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