A twenty four metre Royal Navy tug, mined in May 1942 while sweeping, now sitting upright and tidy at fifty four metres just outside Grand Harbour. Small, complete and charming, with one large catch: she is parked in the shipping channel.
Sea conditions
Stay dry right now
Sea is up (3.2 m NW) · Fresh W wind (39 km/h) · Gusts to 60 km/h
Done for today. Tomorrow: not looking good. Best it gets is 20 at 17:00: Sea is up (1.3 m NW)
Forecast for the site, updated 19:45 · Models disagree
Measured at Fort St Elmo (5.6 km away, 20:29): 35 km/h from W, gusts 40. The next hours lean on it.
- Waves
- 3.2 m
- from NW, biggest 5.1
- Wind
- 39 km/h
- W, gusts 60
- Swell
- 0.9 m
- 10 s period
- Sea temp
- 22 °C
- air 18 °C
Hour by hour
Next 7 days
Sunrise 06:25, sunset 17:05
Waves: Copernicus Med-Waves 4 km + MFWAM 8 km + EWAM 5 km + ECMWF WAM 9 km. Wind: ICON-2I 2 km + ECMWF IFS 9 km + ICON-EU 7 km + UKMO 10 km + ARPEGE 11 km. Read a few km out on the side the site is open to, then blended.
Exposed to wind and swell from: N (0°), NE (45°), E (90°), SE (135°). Just outside the harbour entrance with Malta's coast to the west, so the northeast and east quadrant is what matters. A gregale makes it impossible. In a westerly or southwesterly the water off Valletta flattens and clears nicely. Visibility is generally good, twenty to thirty metres, though harbour outflow can knock it back after heavy rain. Best season: May to October, subject entirely to when the harbour approach is closed to traffic..
The dive
Everything about this wreck is likeable except her address. St Angelo is a compact little tug sitting bolt upright on clean sand at fifty four metres, small enough that you can circle her several times in a single bottom time and actually understand the whole vessel. Wheelhouse, towing gear, deck fittings, the lot, all in one readable package with fish hanging off every corner.
The complication is that she lies right in the approach channel for Grand Harbour, with cruise ships, ferries and commercial traffic passing over the top. That is not a theoretical hazard. Most operators will only run this dive when the harbour is closed to traffic on specific dates, and anyone offering it casually on a busy Tuesday is doing something you should not be part of.
At fifty four metres she is also one of the more accessible deep wrecks on this list. A normoxic trimix diver with a decent kit and a sensible plan gets a satisfying twenty five minutes down there. She is the sort of wreck that makes people fall for technical diving.
- Small enough to take in completely, upright and very photogenic
- Fifty four metres, which is the shallow end of Malta's serious deep wrecks
- A harbour tug turned minesweeper, a proper siege era story
- Ten minutes from the quay when the timing works
Typical plan
Normoxic trimix, around twenty to twenty five minutes at fifty four metres. Down the shot to the wheelhouse, a slow lap of the hull at deck level, a second lower lap along the sand to see the shape of her, then back up the line. Thirty to forty five minutes of decompression on fifty percent nitrox and oxygen. Big delayed surface marker on the way up, and a boat that does not wander.
What the bottom looks like
- 1Wheelhouse and upper deck49 m deep · under the boat
- 2Bow and forward fittings52 m deep · 8 m from the boat
- 3Stern, towing gear and rudder53 m deep · 22 m from the boat
- 4Clean sand around the hull54 m deep · 38 m from the boat
Flat sand with a light silt layer, the small upright hull standing out sharply against it.
Who you might meet
Sometimes
Marked ones can hurt you. What they do and what to do about it is under Getting in and staying safe.
Getting in and staying safe
Boat only, and realistically only on days when the harbour approach is closed to commercial traffic. Talk to a technical centre in Sliema or Valletta and be led by their advice on timing, because the scheduling is the whole game here. The run out is short, which is a bonus, but you want a boat that will stay directly over you throughout, a shot line, and a very visible surface marker on ascent. Check the current Heritage Malta permitting position with your centre before booking.
- Commercial shipping directly overhead: this is the single biggest risk on the site
- Fifty four metres requiring trimix and a real decompression plan
- Snagged fishing line and lost tackle around the wreck
- Silt on and around the hull that clouds up quickly
- Open water decompression in a busy channel, so a large marker is essential
- Possible unexploded ordnance given how she was lost
Marine life to respect

Common stingray · Boll Can hurt you
Whips a barbed tail if stepped on or cornered. Stay off the sand and give it room.

Conger eel · Gringu Can hurt you
Crushing bite if a hand goes into its hole. Look in from a distance and keep fingers out.

Red scorpionfish · Ċippullazza Can hurt you
Venomous spines, and it sits still on the rock. Look before you kneel or hold on; hot water if stung.
A bit of history
St Angelo began life as a tug and spent her Royal Navy career as a harbour workhorse, ferrying people and stores from the base at Fort St Angelo out to warships lying in Grand Harbour and around the other Maltese ports. During the war she was put to rescue work, towing and eventually minesweeping, which is what the siege did to almost every small craft on the island. On 30 May 1942, in the same run of weeks that claimed the drifters Eddy and others off Valletta, she struck a mine and sank just outside the harbour she had served. She is roughly twenty four metres long and lies upright on sand at fifty four metres, about a kilometre and a half off the Grand Harbour entrance.
Divers say
Sign in to rate this site and leave a note for the next diver.
- No reviews yet. First one gets bragging rights.
Further reading: Wrecksite entry for HMS St Angelo · Techwise Malta dive notes on HMS St Angelo · Dive Systems Malta: HMS St Angelo · Malta Dive Sites: HMS St Angelo