Tel Afek and Mekorot HaYarkon parks in Yarkon National Park
This is a very pleasant hike through the three parts of the Yarkon National Park - Tel Afek with its Ottoman fortress, the picnic area of the Mekorot Hayarkon Park, and a path along a water channel (Einat channel) linking the two. The tel is of considerable historic interest. The Rosh Ha’ayin Springs have been and continue to be an important water resource for this country. Much of this is explained by signs along the route, although only a minority are in English.
Time: About 3 hours there and back.
Distance: Just over 7½ Km there and back.
Type of hike: There and back same way.
Directions and parking: The hike described starts at Tel Afek, although it could equally well be done in the opposite direction. Enter “Tel Afek” into Waze. Brochures with a map are available in English. From the park entrance drive to the main parking lot.
Admission: This is a park of the Israel Nature and Parks Authority. Hours during the summer are Sunday to Thursday and Saturday 8.00 a.m. to 5.00 p.m. and Friday and holiday eves 8.00 a.m. to 4.00 p.m. Winter closing is 1 hour earlier. Admission is up to 1 hour before closing time. Close to the parking area are restrooms and a kiosk that sells drinks and snacks. They can also provide information about the trails. There are shaded picnic benches close to the parking lot. Children can play in the stream and wading pool. Mekorot Hayarkon Park also has many shaded picnic benches. Their phone number is 03 903-0760. This is their website:
Public transport: Tel Afek is only an 8-minute walk from the nearest bus stop, which is serviced by many bus lines. Enter “Yarkon National Park” into Moovit.

Ottaman fortress on Tel Afek
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Tel Afek and the Rosh Ha’ayin Springs
The fortress you see on top of the tel is Ottoman and was built between 1572 and 1574 CE. Its name Antipatris Fortress is the name of the city built here by Herod.
There have been fortresses on Tel Afek since the Canaanite period, since the tel is very strategically located. The main highway or Via Maris connecting Egypt to the northern regions of the ancient Near East, including the Levant and parts of Anatolia (modern-day Turkey), made a right turn inland at Jaffa. This was because the Yarkon River obstructed passage. Moreover, the multiple springs feeding the Yarkon River led to marshland, and the Via Maris continued past this marshland almost up to the mountains of Samaria. Almost, but not quite. There was a 2-km wide critical pass, called the Afek Pass, between the mountains on the east and the Rosh Ha’ayin Springs on the west. The fortresses on Tel Afek controlled this crucial pass.
Afek first became a Canaanite walled city in the Early Bronze Age, in about 3,00 BCE. It came under Egyptian control during the Middle Bronze Age, but the Canaanites reestablished their autonomy during the Late Bronze Age.
Thus, within the courtyard of the fortress are the ruins of a Canaanite palace that has been dated to the 15th to 13th centuries BCE, Late Bronze Age. Next to this is the partially reconstructed ruins of an Egyptian governor’s house/ administrative buildings. These structures date primarily to the 13th century BCE, especially during the reigns of Seti I and Ramesses II of the Nineteenth Dynasty. During this time, Aphek was an important Egyptian administrative center that oversaw southern Canaan. The palace complex was violently destroyed around about 1180–1150 BCE, coinciding with the collapse of Egyptian power in Canaan during the upheavals associated with the end of the Bronze Age and the arrival of the Sea Peoples.
Afek is mentioned in the book of Joshua as being captured by the Israelites (Joshua 12:18), but it came under the control of the Philistines during the Iron Age. The Bible describes the Battle of Afek during which the Israelites were defeated by the Philistines and the Ark of the Covenant was captured (I Samuel 4:1).
The city subsequently became an Israelite settlement. A Greek city was established during the Hellenistic period. Herod the Great expanded the city in the early Roman period and named it after his father Antipatris. The city flourished during the Late Roman period (132 to 324 CE). The remains of the Cardo from this period can be seen outside the fortress and also the remains of a small theater, although no significant archeology has been carried out.
The Crusaders built a fortress at Migdal Tsedek on the other side of the Migdal Pass, and this fortress can be viewed from the fortress tower on Tel Afek. A telescope (without glass) is even provided so you can find its location.
The Rosh Ha’ayin Springs is the where a major aquifer emerges at the foot of Tel Afek. This aquifer is from rainwater from Judea and Samaria and which emerges here because the mountains have a westward incline. It was once a major source of water for the Yarkon River. This river is 27 Km long and is joined by other tributaries before it reaches the Mediterranean in Tel Aviv. As mentioned, the springs also created swamps around both banks of the river.
The Rosh Ha’ayin Springs were the main source of water for Jerusalem during the British Mandate. Beginning in 1936, water was pumped to Sha’ar HaGai, and then via additional pumps into the city of Jerusalem. The British-built buildings in the park once contained a pump, filtration and settling pools and a chlorination system. There were also buildings for the British soldiers who guarded this.
In the 1950s, Ben Gurion ordered the establishment of Yarkon-Negev water pipelines from the Rosh Ha’ayin Springs to provide water to the Negev region, and in 1964 this water was linked into the national water carrier. The net result of this was that only a small fraction of its water now entered the Yarkon River. As a result of a fall in the water level of the aquifer the swamps around the springs also dried up. However, the swamps have been recreated by pumping water from the aquifer and into the Einat Channel.
The hike:
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After parking in Tel Afek Park, make your way to the fortress via the path that passes the Mandate-period water system. During the late summer it is worth going to the fortress via the שביל החצים (Squill Path), a footpath with many squill plants.
The squill is of the lily family and has broad leaves, white flowers and a large bulb. It flowers at the end of the summer (see picture). The flowers blossom on a column from the bottom up and wither as new flowers appear above them. The path is not marked on the brochure map but the park attendant will point out the direction. This path brings you out onto the Roman cardo, past the Roman theater and then to the southern side of the fortress. Note that the stones of the Cardo are not arranged parallel to the side of the path but at an angle. This prevented carriage wheels getting caught between the joins.
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Enter inside the Ottoman fortress. It contains the ruins of a Canaanite palace and the partially reconstructed ruins of an Egyptian governor’s house from the 13th century BCE. At the far-left corner of the courtyard one can climb up to the roof of the tower and see the tel and Crusader ruins of Migdal Tsedek in the distance on the other side of the Afek Pass.
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Exit the fortress by its northern exit and head towards the large rain pool. At the T-junction turn to the left. After passing through a gate, you will pass a pool and marsh.
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After some distance, you will pass under the railway tracks and then the gate for an entrance into the Mekorot Hayarkon Park. By its entrance is a pillbox built during the Arab revolt of the 1930s to protect the railway. You can enter the pillbox and sit on the benches. You can also turn to the left to view the Water-lily Ponds, which are artificial excavated ponds in which water lilies are being preserved. They have disappeared from other streams in the country due to pollution.
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It is possible to encircle the Mekorot Hayarkon Park. Realistically, there is not a lot to see here and the park is one big shaded picnic area. However, there are covenient areas for viewing the stream.
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If you wish you can continue by the stream to the Concrete House.
This was a pump house providing water for the agriculture of Petah Tikva. It was also the first building in Israel to be constructed out of concrete reinforced with iron bars.
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Return the way you came.
[Shorter walks are described in the brochure that are confined to Tel Afek Park or Mekorot HaYarkon Park].

Pools and marshes have been recreated.

Lillies on the Yarkon Stream.

Partially reconstructed Egyptian governor's house from Late Canaanite period within the fortress.

Quill on the Quill Path. The white flowers appear sequentially up the stem.