The Ocean Parkway begins at a cloverleaf interchange with the southern terminus of the Meadowbrook State Parkway and the Bay Parkway in Jones Beach State Park. Proceeding eastward, the Ocean Parkway parallels the Bay Parkway through Jones Beach State Park, running along the beachfront and past multiple recreational facilities. Just after a connection to the Bay Parkway, the four-lane parkway passes a parking lot for Jones Beach, along with a turnoff into a secondary lot for the bathhouse and the Jones Beach Theatre. In front of that turnoff, the westbound lanes pass two ramps that lead to a large parking lot that spans the gap between the Ocean and Bay parkways. After the parking lot, the Ocean Parkway enters a roundabout around the Jones Beach Water Tower, marking the southern terminus of the Wantagh State Parkway. After the Wantagh, the Ocean Parkway continues east along the beachfront, passing another large parking lot on the westbound lanes and access to the Jones Beach Pitch and Putt on the eastbound lanes. The four-lane parkway then begins to run between the beachfront and the shore for Zachs Bay, a section of the Great South Bay. Passing multiple u-turn ramps between directions, the parkway soon leaves Jones Beach State Park and enters a piece of the town of Oyster Bay. Passing south of Guggenheim Pond, the Ocean continues east as the four-lane arterial it was in the park, soon entering Tobay Beach Park, where the median expands for a short distance. In the center of the park, the parkway reaches the parking lots on the westbound lanes and the Tobay Beach bathhouse on the eastbound lanes. A cross under is provided under the lanes of the Ocean for people to safely cross the parkway. A short distance from the bathhouse, the Ocean Parkway leaves Tobay Beach Park and enters the Suffolk County town of Babylon. Entering the hamlet of West Gilgo Beach, the parkway runs alongside many beachfront residences, with an intersection from the westbound lanes to the community. Soon entering Gilgo Beach, the Ocean passes several more bayside residences along the Great South Bay. The parkway expands to six lanes as it passes the access to Gilgo Beach and the cross under between the parking lot and the beach. Near the cross under, the parking lot is accessed via a tolled entrance from the westbound lanes. As the Ocean Parkway leaves Gilgo Beach, the six-lane parkway crosses into Gilgo State Park. Through Gilgo State Park, the Ocean Parkway develops a wide, grassy median between the six lanes. Passing another section of the Great South Bay, the parkway soon leaves the park, where the median returns, thins out and access is provided to another beach and recreational facilities, as the road passes the Cedar Beach Golf Course. Entering another section of Gilgo State Park, the Ocean Parkway evens out eastward before leaving the park for the hamlet of Oak Beach. Crossing north of several oceanside residences, the parkway soon crosses between the Atlantic Ocean and Oak Island as it reaches the center of the hamlet. Before paralleling Captree Island, the parkway expands with a wider median once again, entering Captree State Park. A short distance into the park, the Ocean Parkway enters a cloverleaf interchange with the Robert Moses Causeway. After the causeway, the Ocean Parkway reduces to four lanes as it crosses into the town of Islip, reaching the tollbooths that mark the eastern terminus of the Ocean. On the other side of the tollbooths, the right-of-way enters another roundabout and connects to another beach and the local marina in Captree State Park.
History
Originally, there had been plans to extend the parkway to nearby Fire Island, and two attempts were made to authorize construction. However, residents resisted the plan: the first time for economic reasons, the second for environmental reasons. Although in 1964, Robert Moses Causeway was extended from its original terminus on Captree Island to Fire Island leading to the potential extension of Ocean Parkway, park legislation in the 1960s blocked further plans to extend the parkway. In December 2010, Suffolk County Police found four decomposed bodies along the westbound shoulder of Ocean Parkway near Oak Beach while searching for Shannan Gilbert, a missing escort from New Jersey last seen in the area with a client on May 1, 2010. However, the remains were officially identified as other missing women who advertised prostitution services on Craigslist. In late March and early April 2011, four more sets of human remains were found by police during additional searches along the parkway. Police have not identified the bodies. An investigation is ongoing to determine if this is the work of a serial killer. The eastbound direction of the parkway was significantly damaged by Hurricane Sandy in October 2012. The westbound side of the road was reconfigured into a two-lane, two-way highway while the eastbound lanes were repaired.
