Most visitors assume Central Park is the extent of New York's greenery. In fact, the city's largest park sits way out in the Bronx: Pelham Bay Park covers 2,772 acres — more than triple Central Park's footprint — yet remains largely unknown to anyone who doesn't live nearby.

The park packs in forests, meadows and wetlands along Pelham Bay, plus Orchard Beach, a 1.1-mile stretch of sand nicknamed the "Bronx Riviera." Because the bay is sheltered from the open ocean, swimming here is calmer and safer than at many coastal beaches, and the waterfront adds 26 sport courts, food stalls, picnic spots and two playgrounds to the mix.

Autumn is arguably the best time to go. North of Orchard Beach, Hunter Island — a 220-acre peninsula, despite the name — holds the park's biggest stand of forest, where hickory, sassafras, black birch and tulip trees turn gold and red against evergreens like white pine and Norway spruce. Trails wind through the woods, and you stand a decent chance of spotting deer, raccoons, cottontails or even coyotes. Birders do well here too: warblers, kinglets, raptors and shorebirds pass through in fall, and owls turn up among the conifers in winter.

There's plenty to keep a family busy beyond the trails. Five miles of cycling paths criss-cross the park, and four playgrounds include the Playground for All Children, designed with accessible swings, handrails and Braille signage for kids with disabilities. On the other side of the Hutchinson River, the Turtle Cove Golf Center runs an 18-hole mini golf course plus lessons, while serious golfers can book rounds at the Pelham Bay & Split Rock Golf Courses. Nearby, the Bartow-Pell Mansion Museum — a 19th-century Greek Revival home — offers tours, and City Island Stables a mile south does pony rides, trail rides and lessons for kids aged 5 to 16.

Anglers and paddlers get in on the action at The Lagoon, between Hunter Island and Shore Road, where fluke, winter flounder and bluefish are fair game in season. There are no boat rentals in the park, so bring your own canoe or kayak and launch from the end of Park Drive on Hunter Island. Ducks, egrets, herons and the occasional migrating osprey make it a solid birding spot too.

Why it matters: Pelham Bay is an easy subway-and-bus day trip that delivers beaches, forests and golf without Manhattan crowds or prices. If you're planning a New York trip in October, swap one Central Park morning for a day here — the foliage is better and the queues nonexistent. And if you want more green space afterwards, Brooklyn's Prospect Park adds a zoo, ice rink and carousel to the city's outdoor roster.