

Best for technical divers, 48-52m, boat entry, mild current.
HMS Perseus is a British submarine from World War II resting on the seabed off Kefalonia. This technical dive site sits at depths between 48 and 52 metres, requiring trimix certification and rigorous gas management. Access is by boat only, located 1600 metres from the shore. Visibility typically ranges from 10 to 30 metres, allowing for observation of the hull structure. While currents are generally mild, they can strengthen without warning. Due to the depth and potential for entanglement, this site is strictly for experienced divers with overhead environment training. Divers must coordinate with boat operators experienced in technical wreck diving to ensure safety.
38.02187, 20.76313
The conning-tower hatch is open, which confirms the escape story of the sole survivor.
Accessible by boat from the ports of Skala or Poros on Kefalonia.
Recorded at this site
Depth
48-52m
Visibility
10-30m
Skill Level
Technical
Entry
Boat
Boat required
Water Temp
15-20°C
Current
Mild
Best Time
May, Jun, Jul, Aug, Sep, Oct
No, this site is for technical divers only. The depth of 48 to 52 metres requires trimix certification and advanced gas planning.
The wreck lies at a depth of 48 to 52 metres, with an average depth of 40 metres.
This is a boat dive located 1600 metres from the shore. A boat charter is required to reach the site.
The primary hazards include the significant depth, potential for entanglement within the wreck, and unpredictable currents that can strengthen with little warning.
Diving at HMS Perseus in Póros requires the following certifications: Advanced, Technical, Trimix. Always dive within your training limits.
A 7mm wetsuit or semi-dry is recommended for diving at HMS Perseus in Póros. Water temperatures range from 15°C to 20°C.
The best months to visit HMS Perseus in Póros are May, June, July, August, September, and October. Conditions outside these months can still be good but are less predictable.
HMS Perseus in Póros typically has mild currents that most divers can handle comfortably.
Visibility at HMS Perseus in Póros typically ranges from 10 metres to 30 metres. Conditions vary with weather, tides, and seasons.