Apollonia–Arsuf – Crusader Harbour Submerged Quays
Arsuf · Apollonia Palestina · Tel Arshaf
Persian to Crusader (c. 530 BCE – 1265 CE)·Phoenician / Persian / Hellenistic / Roman / Crusader·🇮🇱 Central District, Herzliya, Israel
About
About Apollonia–Arsuf – Crusader Harbour Submerged Quays
Apollonia (Arsuf) – Persian-founded Phoenician harbour (6th c. BCE), Hellenistic Apollonia, Roman Sozousa, Crusader Arsuf with formidable clifftop fortress (1241 CE). Its twin harbours: the northern Roman quay (ashlar, concrete) and the southern Crusader mole (kurkar sandstone) now lie submerged 1–3 m due to 2 m relative sea-level rise + Nile sand longshore drift collapse after Aswan dam. IAA surveys mapped a 40 m submerged kurkar breakwater, mooring rings and 12th c. shipwreck ballast 200 m offshore. The Crusader harbour was scuttled 1265 by Baibars; cliff erosion exposes harbour mud sequence.
Why it mattersOnly Levantine harbour preserving superposition of Persian, Roman and Crusader harbour works in 1–3 m subtidal zone; documents Nile sand supply collapse post-Aswan.
Open questions
Mysteries & theories
Mysteries
- 01Extent of Persian vs Hellenistic harbour phases beneath Roman concrete
- 02Whether southern mole was Crusader de novo or Roman reuse
Theories
- 01Harbour mud OSL dates anchor 551 CE earthquake subsidence
Theories are interpretations, not findings. The seal above tells you how much scholarly weight the place carries.
History
How it came to be
- Built
- Harbour Persian c. 530 BCE; Roman quay 1st c. CE; Crusader mole 12th c.
- Period
- Persian to Crusader (c. 530 BCE – 1265 CE)
- Culture
- Phoenician / Persian / Hellenistic / Roman / Crusader
- Purpose
- Purple dye, glass, wine export; Crusader supply port for Jaffa–Acre
- Abandoned
- Abandoned 1265 after Baibars destruction
- Rediscovered
- Ayalon & Roll 1980s excavations; IAA harbour survey 1990s
- Excavation
- Submerged
Harbour Persian c. 530 BCE; Roman quay 1st c. CE; Crusader mole 12th c.
Initial construction
c. 1367 CE
Abandonment
On the ground
Structures & features
32.1960° N · 34.7740° E · -1 m · 3 mapped features
Northern Roman Quay
harbourAshlar and concrete quay 40 m at –1.5 m north of fortress
32.1965° N · 34.7745° ESouthern Crusader Mole
moleKurkar breakwater 30 m at –2 m south of Apollonia cliff
32.1952° N · 34.7732° EArsuf Fortress Harbour Viewpoint
fortressClifftop Crusader fortress overlooking both submerged harbours
32.1960° N · 34.7760° E