On your second day in Fairfield, embrace the outdoors and explore the natural beauty of the area. Start your day with a hike at the Connecticut Audubon Society's Larsen Sanctuary. Enjoy the serene trails and keep an eye out for various bird species. Afterward, head to the Penfield Beach and indulge in some beach activities like swimming or sunbathing. For lunch, have a picnic at the Jennings Beach and enjoy the scenic views. In the afternoon, visit the Fairfield University Art Museum and admire the impressive collection of art. End your day by taking a sunset cruise on the Long Island Sound and enjoy the breathtaking views.