Yarkon national park, National park in Sharon Plain, Israel

Yarkon National Park combines two separate sections of the upper Yarkon: Tel Afek, entered from Route 483 between Petah Tikva and Rosh HaAyin, and the Yarkon springs, reached from Route 5 or Route 40 via the Kfar HaBaptistim entrance. A marked trail, part of the Israel National Trail, links the two. In the springs section stand Beit HaBeton, the first reinforced-concrete building in Palestine, built in 1912 as a pump house, and two railway bridges side by side over the river.

The park grounds contain ancient remains and several old mills that were built during Roman times and continued operating through the British Mandate period. These structures show the long history of how people used the river area across different periods.

The park's name comes from the Yarkon River, whose springs at Rosh HaAyin feed it. The northern section lies in Petah Tikva and includes the concrete pump house of 1912 and the Al-Mirr mill, named after a village that stood nearby until 1948. A marked trail, part of the Israel National Trail, links the two halves of the park.

The park has multiple entrances with parking areas, picnic spots, and well-marked paths for walking and cycling activities. Visitors should wear comfortable shoes and bring plenty of water, especially on warmer days.

The Beit haBeton, a pump house built in 1912 by Gedaljahu Wilbuschewitz for Bezalel Jaffe's Palestinah company, was the first steel-reinforced concrete building in Palestine and pumped water until the 1970s. Nearby stand the ruins of the Qassir farm, sold in 1895 by Salim Qassir to Baron de Rothschild, who handed it to Petah Tikva residents as an experimental seed farm.