‘En Besor, Natural spring in Negev Desert, Israel

En Besor is a natural spring in the Negev Desert that emerges at an elevation of 68 meters (223 feet) above sea level. The water flows from underground sources and creates a small pool surrounded by desert terrain.

The spring's water was captured by the British during the Mandate period and used by the British army for drinking and to power steam locomotives. Today its flow is channeled in Eshkol Park into a small lake and paddling pools, and is used to irrigate the lawns and maintain the gardens of the national park.

The Arabic name Ein Shalala means "the waterfall spring", a reference to the water gushing out along Nahal Besor. The spring's steady flow was tapped by the British, who used it for drinking water and for steam locomotives. Today its water feeds a small lake and paddling pools in Eshkol National Park.

The spring is located within Habsor National Park and can be reached via marked hiking trails. Bring plenty of water and sun protection as the area offers little shade in the open desert landscape.

The spring's output stays steady at 60–75 cubic metres per hour even in severe drought, unlike other springs along Nahal Besor that stop flowing in summer. Its water is brackish, with 1,210–1,300 mg of chloride per litre, and holds a constant 20 °C. The British army once captured the flow for drinking water and for its steam locomotives.