Trenton’s Parks and Green Spaces: Cadwalader Park, the Canal and Places to Get Outside

Trenton is a dense, old city, but it has a long tradition of public parks, anchored by one of the country’s notable nineteenth-century landscapes. Here is where to find green space in the capital and what each place offers.

Cadwalader Park

Cadwalader Park is the largest urban park in the city, at 109.5 acres, according to the Trenton City Museum, which occupies the Ellarslie mansion in the middle of the park. The Delaware and Raritan Canal State Park crosses it, and the City calls it the anchor of Trenton’s legacy of public parks.

From country estate to city park

The museum traces the land to Dr. Thomas Cadwalader of Philadelphia, who moved to Trenton in 1743 and built a country home that became his residence in 1746. In 1841, Henry McCall bought most of the current park and hired the Philadelphia architect John Notman to build an Italianate villa he called Ellarslie. The feeder for the D&R Canal, built between 1832 and 1834 to supply water from the Delaware, already cut across the land.

In 1888, the remaining 80 acres, including Ellarslie, went up for sale, and the City of Trenton bought the property for $50,000. It was transferred to the City on May 22, 1888. Thousands of residents came to see their new park within days, many walking from downtown. In 1892 the horse-car line was extended out West State Street to the park, and on July 4 that year some 12,000 people visited.

The Olmsted plan

Civic leaders engaged Frederick Law Olmsted’s firm in 1890, the museum and The Cultural Landscape Foundation both record. Olmsted, best known as co-designer of New York’s Central Park, planned carriage drives, pedestrian paths, lawns and groves around Ellarslie, which he wanted to turn into a restaurant for park visitors, plus a concert grove for open-air music. Much of the design work was supervised by John Charles Olmsted. The foundation notes that political changes in 1892 cost Olmsted the commission, but later work broadly followed the firm’s plan, and Olmsted Brothers designed a southern addition in 1910 with a wading pool and tennis courts. The mansion was listed on the National Register of Historic Places in 1973.

The canal: a long green line

The Delaware and Raritan Canal was built in the 1830s to carry freight between the Delaware and Raritan rivers, the City’s stormwater plan notes, and today the canal and its feeder are a state park running through Trenton. The Trenton Canoe Club launches behind the playground area at the base of the steps under the bridge over the canal in Cadwalader Park, and runs after Labor Day through October.

Neighborhood parks

Alongside Cadwalader, the City’s Parks and Natural Resources page describes a growing network of modern, fully inclusive neighborhood playgrounds. Franklin Park, Rutherford Avenue Park, Wetzel Park and Unity Park have been transformed, the City says, into safe, accessible community hubs.

• Cadwalader Park — Historic landscape, Ellarslie museum, canal paths, canoe launch. Year-round; canoe club after Labor Day through October.
• Stacy Pond, by the Delaware — Annual youth fishing derby for grades 2 to 8. Once a year, run with NJ DEP.
• City pools — Swim lessons, water safety, lifeguard training. Summer.
• Neighborhood parks — Renovated, inclusive playgrounds. Year-round.

Summer pools

The City’s Summer Pool Program offers swimming programs and lessons in basic water safety, competitive strokes, lifeguard training, CPR and first aid. The City lists pools including Father Rocco Pool at 1501 New Willow Street, Martin Luther King Pool at 347 Brunswick Avenue and Roberto Clemente Pool at 342 Academy Street. Check the City’s pool page for hours and admission rules before you go.

A day by the river

Each year the New Jersey Department of Environmental Protection and the City of Trenton host a Youth Fishing Derby at Stacy Pond. Children in grades 2 through 8 learn fishing basics, safety and fish identification and spend a day in nature beside the Delaware River, with lunch provided. For more about the river itself, see The Delaware River at Trenton: Where the Tide Begins and How High the River Has Risen.

Trees and shade

The City’s Shade Tree and Natural Resources divisions work to expand Trenton’s urban canopy, combat urban heat island effects and maintain open spaces. Street trees also slow stormwater, one reason the City’s stormwater plan calls for strategic greening of the city.

Pair a visit to Cadwalader Park with the Trenton City Museum at Ellarslie. Standing at the mansion shows why the Olmsted plan placed it at the center of the park, with drives and paths leading to it.

Keep parks clean

Litter left in a park ends up in the canal or the river after the next storm. Pack out what you bring, and if you want to do more, join a cleanup; see River Cleanups and Green Volunteering in Trenton: Where to Start and How to Do It Safely.