Question: About how much oceanfront is included in the coastal region along which the New Jersey Coastal Heritage Trail Route extends? 
Context: The New England National Scenic Trail (NET) is a National Scenic Trail in southern New England, which includes most of the three single trails Metacomet-Monadnock Trail, Mattabesett Trail and Metacomet Trail.  After the Metacomet-Monadnock-Mattabesett trail system, the trail is sometimes called the Triple-M Trail.  The 215 mi route extends through 41 communities from Guilford, Connecticut at Long Island Sound over the Metacomet Ridge, through the highlands of the Pioneer Valley of Massachusetts, to the New Hampshire state border.  (The remainder of the M-M Trail to the summit of Mount Monadnock in southern New Hampshire is not included in the designation.)  This includes a now (2013) complete connector trail (the Menunkatuck Trail) from the southernmost location of the Mattabesett Trail (in northern Guilford, Connecticut) to the sea (Long Island Sound) and a deviation of the Metacomet-Monadnock Trail in Massachusetts, to lead the trail through state-owned land instead of largely unprotected land. The Jersey Shore is the coastal region of the U.S. state of New Jersey.  Geographically, the term encompasses about 141 mi of oceanfront from Perth Amboy in the north to Cape May Point in the south, bordering the Atlantic Ocean.  The Jersey Shore area includes Middlesex, Monmouth, Ocean, Atlantic, and Cape May counties.  While there is no defined border between North Jersey and South Jersey, the Raritan River, Manasquan River or I-195 are often mentioned as the border, with most of the shore region being located in South Jersey.  Many New Jersey residents refer to it simply as "The Shore", as in to go "down the shore", or to have done something "down the shore". The Edwin B. Forsythe National Wildlife Refuge is a United States National Wildlife Refuge located in southern New Jersey along the Atlantic coast north of Atlantic City, in Atlantic and Ocean counties.  The refuge was created in 1984 out of two existing refuge parcels created to protect tidal wetland and shallow bay habitat for migratory water birds.  The Barnegat Division (established in 1967) is located in Ocean County on the inland side of Barnegat Bay.  The Brigantine Division (established in 1939) is located approximately 10 miles (16 km) north of Atlantic City along the south bank of the mouth of the Mullica River.  The two divisions are separated by approximately 20 miles (32 km).  The refuge is located along most active flight paths of the Atlantic Flyway, making it an important link in the network of national wildlife refuges administered nationwide by the U.S. Fish and Wildlife Service.  Forsythe Refuge is a part of the Hudson River/New York Bight Ecosystem and The New Jersey Coastal Heritage Trail Route.  The refuge is named for Edwin B. Forsythe, conservationist Congressman from New Jersey. Barnegat Lighthouse State Park is located on the northern tip of Long Beach Island in Ocean County, New Jersey, United States.  The area where the lighthouse stands was regarded as one of the most important navigational points for ships bound to and from New York Harbor.  The ships were dependent upon the Barnegat Lighthouse to avoid the shoals extending from the shoreline.  The swift currents, shifting sandbars, and offshore shoals challenged the skills of even the most experienced sailors.  The park is included as a maritime site on the New Jersey Coastal Heritage Trail.  The park is operated and maintained by the New Jersey Division of Parks and Forestry. The Tai Tam Waterworks Heritage Trail () is a heritage trail in Hong Kong that comprises 21 waterworks structures with historical value near the Tai Tam group of reservoirs.  The Trail is about 5 km long and takes about two hours to complete.  The Trail is located along the Tai Tam Reservoir Road with entrance at Wong Nai Chung Gap near Hong Kong Parkview or at the junction of Tai Tam Road and Tai Tam Reservoir Road.  Ten information stations were established en route to introduce the functions and historic values of the structures.  Guided tours will be organised for schools and non-profit making organisations. The Glades is a name for 7113 acre in Newport, New Jersey along the Delaware Bay.  Owned by Natural Lands Trust, the formal name of this preserve is the "Glades Wildlife Refuge" and is publicly accessible at several points.  Several of these points are part of New Jersey's Coastal Heritage Route. Allaire State Park is a park located in Howell and in Wall Township in Monmouth County, New Jersey, United States, near the borough of Farmingdale, operated and maintained by the New Jersey Division of Parks and Forestry and is part of the New Jersey Coastal Heritage Trail Route.  The park is known for its restored 19th century ironworks, Allaire Village, on the park premises.  It is named after James P. Allaire, founder of the Howell Works at the same site.  The park also hosts the Pine Creek Railroad, a tourist railroad. The Juan Bautista de Anza National Historic Trail is a 1210 mi National Park Service unit in the United States National Historic Trail and National Millennium Trail programs.  The trail route extends from Nogales on the U.S.-Mexico border in Arizona, through the California desert and coastal areas in Southern California and the Central Coast region to San Francisco. The New Jersey Coastal Heritage Trail Route extends along eastern and southern coast of New Jersey for nearly 300 miles.  It travels along the Raritan Bay from Perth Amboy to Sandy Hook, along Jersey Shore at the Atlantic Ocean to Cape May, and along the Delaware Bay to the Delaware Memorial Bridge.  The trail encompasses a variety of New Jersey state parks along with facilities under the jurisdiction of the National Park Service. Louisiana African American Heritage Trail (French: "Sentier de l'héritage afro-américain de la Louisiane" ) is a cultural heritage trail with 26 sites designated in 2008 by the state of Louisiana, from New Orleans along the Mississippi River to Baton Rouge and Shreveport, with sites in small towns and plantations also included.  In New Orleans several sites are within a walking area.  Auto travel is required to reach sites outside the city.
Answer: 141 mi