Yes, Roosevelt Island is a very pet-friendly community, and dogs are fully allowed on the island's many parks, promenades, and residential streets. The island offers a tranquil escape from the density of Manhattan, featuring wide walking paths along the East River that are perfect for dog walking. There are even dedicated dog runs, such as the one located near the Octagon building, where pets can run off-leash in a secure environment. When it comes to transportation, the rules are consistent with the broader NYC transit system: dogs are allowed on the Roosevelt Island Tram and the F Subway, but they must be in a carrier or a "closed container" that can be carried by the owner. Small dogs in bags are common sights on the tram. Once on the island, the "Red Bus" shuttle also allows pets in carriers. It is important to remember that dogs must be leashed at all times when in public outdoor spaces (outside of dog runs) and owners are legally required to clean up after their pets to maintain the island's pristine landscaped parks and historical sites.