Spend the third day immersing yourself in nature on Algonquin Island. Take a nature walk through Algonquin Island Park, a peaceful oasis with lush greenery and scenic trails. Keep an eye out for various bird species and other wildlife that call the island home. Visit the Algonquin Bridge, a picturesque spot offering panoramic views of the Toronto skyline. Enjoy a picnic in one of the island's picnic areas or have a barbecue by the waterfront. End the day by relaxing on the beach and enjoying the tranquility of the island.