משחה עמק חפר

At Beit Yanai National Park, swimmers enter the clear Mediterranean surf. The Emek Hefer Swim is an open water swimming race held in November in the sea at Beit Yanai National Park, in the Emek Hefer region of Israel. The event takes place off pristine white sandy beaches, in clear Mediterranean waters that occasionally see sightings of marine mammals. In past editions, the event has featured the release of rehabilitated sea turtles into the wild as a symbolic start to the competition. Organized by Shvoong Sport events, the race features competitive swimming distances of 4.7 km, 2.5 km, and 1.2 km, alongside a popular 600-meter swim open to recreational participants.

Swimmers compete along a rectangular circuit laid out 150 meters from the shoreline, navigating two long 450-meter legs connected by two shorter 100-meter legs. Turning buoys guide swimmers through the swells as they gauge their pace across the open coastal water. Competitors in the adult event complete a 750-meter sea swim before transitioning to a 3.4 km run along the coastal route. A dedicated children's aquathlon covers a 500-meter open water swim coupled with a 1.7 km run across the sand, allowing young athletes to test their endurance along the edge of the Mediterranean.

The Sharon Escarpment along the kurkar coast

Beit Yanai is situated on the shore of the Mediterranean Sea within the Sharon plain, where sandy shores give way to maritime villages. Just down the coast, north of Netanya, lies the settlement of Tzukei Yam, named after the prominent coastal cliffs that define the area. About four kilometres from the race area, the shoreline rises into the Sharon Escarpment, a coastal cliff reaching up to 45 meters in height with sheer slopes angled between 75 and 90 degrees. This prominent escarpment began to develop roughly 7,500 years ago, when post-glacial sea levels reached the western flank of the coastal ridge. Waves cut into alternating vertical layers of kurkar sandstone and loose palaeosol soil, carving the vertical profile seen today.

The ancient western edge of this natural ridge now rests about 8 meters below sea level. Continuous wave action and occasional rockslides cause the cliff line to retreat eastward, an ongoing coastal erosion process that threatens ancient cities along this Mediterranean coast, including Ashkelon, Yavne-Yam, Jaffa, Apollonia–Arsuf, Caesarea, Atlit, Akko, and Achziv. About five kilometres from the race area, the site of Umm Khalid reveals evidence of human life along these coastal heights reaching back millennia. Prehistoric flint tools discovered here point to early coastal habitation, followed by centuries of builders who constructed towers, fortresses, reservoirs, and cisterns. Among the historic remains are the ruins of Castellum Rogerii Langobardi, a Crusader castle documented in 1135.

In 1799, Napoleon's troops destroyed the settlement during their retreat from the siege of Acre. By 1873, surveys recorded a vaulted stone building, six circular granaries cut into the rock, cisterns, a pond with mud banks, and a masonry well equipped with troughs and a wheel for drawing water.

Gador Sea Nature Reserve and turtle beaches

Along the water's edge, rocky abrasion platforms sculpted by wave action create wide intertidal benches that provide shelter and feeding grounds for thriving colonies of marine invertebrates. The undisturbed sandy beach within the reserve provides critical nesting territory where sea turtles come ashore to dig nests and lay their eggs. Once they emerge from the sand, hatchlings enter the Mediterranean and spend the first hours of their lives swimming within the protected boundaries of the marine reserve. Swimmers in the region share these open coastal waters with this delicate marine cycle, where conservation efforts help protect the animals from the shoreline outward. {{h2:Caesarea Maritima and the submerged Sebastos harbour}} Fourteen kilometres north along the same Mediterranean coast lies Caesarea Maritima, originally settled during the 4th century BCE as a Phoenician trading village named Straton's Tower. Between 22 and 15 BCE, King Herod the Great dramatically transformed the coastal settlement by constructing Sebastos, an immense artificial deep-sea harbour engineered directly in the open sea. A devastating tsunami struck the coast in the 1st or 2nd century, contributing to the ruin of the ancient harbour works. Today, the submerged jetties of Sebastos lie more than 5 meters underwater, forming a sunken archaeological ruin preserved beneath the Mediterranean waves.

The Beit Yanai pier and Mikhmoret lighthouse

About two kilometres from the race area, on Beit Yanai beach, stands the historic pier built in 1939 to serve local farmers. The structure was designed to measure 170 meters in length, with 100 meters extending directly into the sea, supported by concrete pillars driven 6 meters into the seabed using an air hammer. During the 1990s, the National Parks Authority removed the pillars closest to the beach to keep visitors from climbing the deteriorating pier, leaving the outer concrete pilings standing isolated among the breaking waves. Three kilometres away, at the Mevuot Yam youth village in Mikhmoret, coastal navigation is marked by the Mikhmoret lighthouse. Constructed during the 1960s as a single-story concrete structure raised on pillars, the beacon tower stands 14 meters above sea level. Every 15 seconds, its lantern projects two flashes—one white, one red—that sweep across ten nautical miles of open Mediterranean water, guiding mariners along this stretch of coast.