HMS Simoom
Protected Area
Fondali Punta Apicchi
Why dive here
With 70+ marine species recorded in the area - including blue sharks, dolphins, humpback whales, mobula rays (devil rays) and oceanic whitetip sharks - HMS Simoom offers some of Portofino & Liguria's richest wreck diving. Water ranges 14-27°C, warmest July, August, September.
The HMS Simoom, a British S-class submarine, met its end in 1943 off the coast of Portofino, and diving it feels like stepping back in time. You drop down onto the deck, the torpedo tubes still eerily visible, a stark reminder of its purpose. We love how the Mediterranean gorgonians have taken hold, painting the metal hull in shades of red and orange, with schools of damselfish flitting through the conning tower. It’s a pretty deep dive, so definitely one for experienced wreck divers who are comfortable with decompression stops. Our favourite spot is exploring the stern, where you can often spot curious cowfish peeking out from behind the encrusted plating. Visibility here can vary, but on a good day, the shaft of light hitting the wreck from above is just incredible, making the whole scene feel almost sacred. Keep an eye out for the elusive devil fish gliding past in the blue. It’s not a site for beginners, but for those with the training, the Simoom offers a genuinely evocative and rewarding dive.
Typical HMS Simoom Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Depth of 20m - Advanced Open Water certification recommended.
Wreck site - avoid penetration without wreck diving certification. Watch for sharp metal and entanglement hazards.
Always perform a 3-minute safety stop at 5m before surfacing.
Nearest Dive Centres to HMS Simoom
Dive shops near HMS Simoom
MASSUB DIVING CENTER - PORTOFINO
UNDERWATERTALES ASD
Associazione Diving 5 Terre
San Fruttuoso diving center
DIVING GROUP PORTOFINO
SSI Scuba Diving
Reviews for HMS Simoom
Conditions
Ocean conditions, forecast and tides for HMS Simoom
HMS Simoom Ocean Conditions
Monthly averages for HMS Simoom, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (44.38, 9.02) (43km away)
October Averages
Sea Temperature
21°C
70°F · Range: 19–23.2°C
Air Temperature
18°C
64°F
Wind Speed
4.49 m/s
8.7 knots
Atmospheric Pressure
1017.3 hPa
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
Plan & book
Ways to dive Portofino & Liguria, from day trips to liveaboards.
Day trips & courses
via GetYourGuideGuided dives, courses and snorkel trips with instant booking.
Find dive trips in Portofino & LiguriaPlaces to stay
via Booking.comHotels and dive resorts near Portofino & Liguria.
Search stays in Portofino & LiguriaDive insurance
Most travel insurance excludes or limits scuba. Check what you need before you go.
Dive insurance explainedPartner links: we may earn a commission if you book, at no extra cost to you. How we make money
Where to Stay near HMS Simoom
Prices from Booking.com. We may earn a commission at no extra cost to you.
