ALEXANDROS Z - Alonissos Marine Park

We’ve got a soft spot for the Alexandros Z. This wreck is a real beast down at 54 metres, and it makes you feel tiny next to its sheer scale. You're dropping onto a massive cargo ship that went down in 1929, and the history hits you as soon as you see its ghostly outline appear out of the blue. The main draw here is the bow, especially the anchor chains draped across it, now completely encrusted with sponges and some seriously large gorgonians. If you’re a technical diver, this is a playground. We love poking around the cargo holds – they’re wide open and surprisingly clear of debris, making for some dramatic swim-throughs if you're comfortable with the depth and overhead environment. We've seen some impressive schools of damselfish flitting in and out of the superstructure, and the occasional grouper lurking in the shadows. The visibility here can be incredible, sometimes pushing past 30 metres, which really lets you appreciate the full impact of the wreck. Dive it in late morning for the best light penetration into the holds. Just remember, 54 metres is serious depth, so come prepared and check those gas mixes.

Location
Alonissos Marine Park, Greece, Mediterranean & Europe
Coordinates
37.932335, 23.616000
Type
wreck
Maximum Depth
54m

Wreck History - ALEXANDROS Z

Vessel Type
unknown
Cause
unknown

The ALEXANDROS Z is a wreck shrouded in mystery, resting deep within the protected waters of the Alonissos Marine Park in Greece. Lying at a depth of 54 meters, this site is a challenging dive reserved for experienced technical divers. Little is known about the vessel's history or how it sank, adding to its allure. Classified as a "dangerous wreck," it demands careful planning and respect, with potential hazards like entanglement or structural instability. For those qualified to make the descent, the ALEXANDROS Z offers a thrilling exploration into the deep, where its silent, ghostly remains are now part of a vibrant marine ecosystem, patrolled by the larger fish that inhabit the park's depths.

Marine Protected Area: NISIDES SARONIKOU KOLPOU KAI THALASSIA PERIOCHI

Best Time to Dive in Alonissos Marine Park

The warmest water temperatures in Alonissos Marine Park occur in August, averaging 27.2°C. The coolest conditions are in February at 13.9°C.

Monthly Water Temperatures

  • January: 14.5°C
  • February: 13.9°C
  • March: 14.2°C
  • April: 15.4°C
  • May: 18.7°C
  • June: 23.5°C
  • July: 26.5°C
  • August: 27.2°C
  • September: 25.3°C
  • October: 22.8°C
  • November: 19.9°C
  • December: 16.9°C

Nearby Dive Sites in Alonissos Marine Park

Nearest Dive Centres to ALEXANDROS Z

Marine Life in Alonissos Marine Park

Home to 16 recorded species including 3 whales & dolphins, 3 reef fish, 2 other, 2 hard corals, 2 crabs & lobsters, 1 seagrass & algae.

Notable Species

Recommended Packing List for ALEXANDROS Z

Based on average water temperature of 19.9°C, currents 3 cm/s.

  • Wetsuit (3-5mm) - comfortable for 20°C water
  • Mask - essential for every dive
  • Fins
  • BCD - buoyancy compensator
  • Regulator - your most safety-critical piece of gear
  • Dive Computer - tracks depth, time, and NDL
  • Surface Marker Buoy (SMB) - essential for boat pickups
  • Dive Torch - useful for crevices and colour at depth
  • Underwater Camera - capture your diving memories