Fairview Farm Wildlife Preserve, a former dairy farm, is a dog-friendly spot you can take your pooch to in New Jersey. The prime aim of this area of natural habitat is to preserve, protect, and grow the natural life that exists in the state, both animals and plants. You and your pooch can go on a nature walk on one of the trails, check out the exteriors of the old buildings that still stand there, and admire the vast array of colorful flowers when they bloom. The area is often known as the Raritan Headwaters. Dogs are welcome on a leash under six feet, as long as all mess is cleaned up after them. Fairview is open every day of the week from dawn until dusk.