Eastchester Bay is a saltwater bay in the Bronx, New York City, forming a division between Rodman's Neck and the southern area of Pelham Bay Park. The bay is bordered to the east by City Island, connected to the mainland by the City Island Bridge. This bridge, which includes a walkway and bike lane, crosses the channel between Rodman's Neck and City Island, and there is a no-wake zone in this channel. The bay offers access to Long Island Sound to the east. The northeastern shore of the bay is parkland featuring significant tidal wetlands, including 195 acres of salt marsh, which are habitats for birds such as herons, egrets, gulls, and hawks. The western shore hosts several marinas and yacht clubs. For paddlers, currents within Eastchester Bay are minimal, though strong contrary currents can flow south between the islands near City Island. Depths are generally sufficient for most boats but decrease towards the mouth of the Hutchinson River at the head of the bay, and there are known hazards at Big Tom and Cuban Ledge where groundings occur. The bay is exposed to winds from Long Island Sound, which can build to 10-15 knots, creating whitecaps in the main channels and causing significant weathercocking for kayaks. The area is a major boating center, so paddlers should expect substantial motorboat and sailboat traffic, particularly around City Island's marinas. While no specific public launch sites are detailed within the bay itself, the surrounding Pelham Bay Park shoreline and the City Island area provide potential access. The water quality can be good, with one account describing it as beautifully clear, blue, and green. The bay is used for organized paddling events, including a 4-mile kayak/SUP race around City Island and regatta courses within the bay itself.