BETELGEUSE - South Coast

The Betelgeuse is a grim reminder of maritime tragedy, but for us, it's also one of Ireland's most compelling wreck dives. Lying at 30 metres, she’s a huge, broken tanker, utterly mangled by the explosion that sank her in 1979. We love the sheer scale of the devastation here. Bow and stern sections are largely intact, but the midships are a twisted mess of steel plates, pipes, and machinery. It feels eerie, moving through the contorted metal, especially when the visibility drops and the light struggles to penetrate. This isn't a rummage-through-the-holds kind of wreck; it's about appreciating the raw power of the incident. Shoals of pollock drift lazily through the larger openings, and conger eels peer out from behind crumpled bulkheads. The sheer size means you'll need multiple dives to even begin to get a feel for it. We’d suggest focusing on the stern section first, where the rudder and propeller are often visible, then working your way towards the chaos of the middle. It’s a serious dive, suited to experienced wreck divers comfortable with deep water and potentially variable conditions. The Betelgeuse demands respect, and she rewards it with an experience you won't easily forget.

Location
South Coast, Ireland, Mediterranean & Europe
Coordinates
51.687830, -9.532500
Type
wreck
Maximum Depth
30m

Wreck History - BETELGEUSE

Year Sunk
1979
Vessel Type
tanker
Cause
fire

The story of the French oil tanker Betelgeuse is one of the most tragic in modern Irish maritime history. On January 8, 1979, while discharging a cargo of crude oil at the Whiddy Island terminal in Bantry Bay, the vessel was torn apart by a catastrophic series of explosions and a subsequent fire. The disaster claimed the lives of all 42 French crew members, seven Irish terminal workers, and one British national. The force of the blast was immense, breaking the 61,000-ton tanker's back and scattering wreckage across the seabed.

Today, the remains of the Betelgeuse lie in approximately 30 meters of water, serving as a somber memorial to those who perished. Diving on the wreck is a poignant experience, revealing a vast and twisted debris field rather than an intact ship. The sheer scale of the destruction is humbling. Divers can explore sections of the hull, tangled pipework, and massive pieces of superstructure. The site is a challenging dive due to depth and potential currents, but for experienced divers, it offers a powerful glimpse into the aftermath of a major disaster and stands as a significant, if solemn, piece of Irish history.

Marine Protected Area: Glengarriff Harbour and Woodland SAC

Best Time to Dive in South Coast

The warmest water temperatures in South Coast occur in January, averaging 8.8°C. The coolest conditions are in December at 8.8°C.

Monthly Water Temperatures

  • January: 8.8°C (air: 7.0°C)
  • February: 8.8°C (air: 8.3°C)
  • March: 8.8°C (air: 8.1°C)
  • April: 8.8°C (air: 9.3°C)
  • May: 8.8°C (air: 11.8°C)
  • June: 8.8°C (air: 14.2°C)
  • July: 8.8°C (air: 15.6°C)
  • August: 8.8°C (air: 15.8°C)
  • September: 8.8°C (air: 14.6°C)
  • October: 8.8°C (air: 12.4°C)
  • November: 8.8°C (air: 9.9°C)
  • December: 8.8°C (air: 8.1°C)

Nearby Dive Sites in South Coast

Nearest Dive Centres to BETELGEUSE

Marine Life in South Coast

Home to 199 recorded species including 97 reef fish, 24 sharks & rays, 14 whales & dolphins, 14 other, 10 crabs & lobsters, 10 seagrass & algae.

Notable Species

Recommended Packing List for BETELGEUSE

Based on average water temperature of 8.8°C.

  • Drysuit - water at 9°C demands a drysuit with thermal undergarments
  • Hood & Gloves (7mm+) - critical to prevent heat loss
  • 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