Sliema

Also known as: Coral Gardens, Fortizza Reef, Qui Si Sana

Shallow urban shore-dive cluster off Sliema, Malta: caverns, tunnels and swim-throughs to about 15m, mainly used for training, try-dives and night dives.

Last updated July 2026

The dive

Three shallow entries share this short run of Sliema shorefront. No boat, no long ride out, just a walk down from the promenade. Qui Si Sana is the simplest of the three, its terrain flattened out and used mainly for training dives and try-dives under direct instructor supervision. A short distance along, Coral Gardens opens into valleys and low canyons threaded with optional swim-through tunnels. Fortizza Reef, named for the old Sliema Point Battery standing above it, runs the longest sequence: caverns from about 3 to 10 metres where daylight still filters through cracks in the rock, arches and tunnels between 5 and 12 metres, and sandy-bottomed gullies further out to around 15 metres. Octopus are a regular find tucked into those gullies, and after dark a different cast of nocturnal residents replaces them. Boats do use this same stretch of water, and some pass directly over the reefs, so a surface marker buoy stays up for the whole dive, not just the ascent.

What makes it special

Sliema doesn't oversell itself, and neither do the people who dive it. Its own listing carries a single, unflattering review, and even the operators who run trips here call it a second, shallower dive rather than a headline stop. That honesty is really the point. What the site delivers instead is range packed into one short stretch of coast: three different reef characters, a training ground for beginners, and one of the busier night-diving spots on this side of the island, described as a regular fixture for local dive clubs. A kilometre north at Exiles, the shallow Tug 2 wreck gives divers who want depth and structure a deeper counterpart to this cluster's easy, unhurried profile, and the two are often combined on the same day out of a Sliema-based centre.

Photographer's notes

Both the terrain and the marine life reward a camera here more than the site's modest reputation suggests. Fortizza Reef's outer wall has been reported to carry yellow cluster anemones and cup corals, worth a slower pass if you spot them, and the caverns themselves, lit by cracks and holes rather than a torch alone, make for a different kind of wide-angle shot than Malta's open-water sites. A torch still helps, for the corners the daylight doesn't reach. Night dives add their own subjects: moray eels, squid and sea urchins that don't show themselves during the day. The site is shallow enough to spend real time composing a shot rather than watching a dive computer.

Know before you go

Everything sits within a short walk: parking, dive centres, cafes and beach clubs all line the promenade above the water. Parking itself is the catch. Spaces fill early on summer weekends, so plan around it rather than after arriving. Boat traffic is the main hazard here, not depth or terrain, and a DSMB should stay up throughout rather than just near the surface. The tunnels and swim-throughs are shallow and daylight-connected, but they're still overhead sections. Stay off the structure and let trim and buoyancy carry you through rather than reaching for a handhold on the way past.

Why Dive Sliema

What makes this dive site stand out.

  1. Three-in-one shore cluster

    Fortizza Reef, Coral Gardens and Qui Si Sana share one stretch of promenade shore

  2. Cavern and tunnel terrain

    Caverns, arches and swim-throughs cut into limestone to about 15m

  3. Local night-dive default

    A regular fixture for area dive clubs after dark

  4. Boat traffic overhead

    Some vessels pass directly over the reefs; a DSMB is recommended

Depth & Profile

3m
Min depth
15m
Max depth
5–15m
Typical range
ReefTunnelRockSand

Location

35.9138°N, 14.5071°E

Conditions & difficulty

Temperature
14°C – 28°C
Visibility
10–20m
Current
Negligible
Easy

Summary

Shallow depth and gentle terrain throughout; the caverns and tunnels are still overhead sections and reward good buoyancy control.

Safety considerations

What can go wrong here, and what divers do about it. Conditions change - take the briefing from the operator on the day.

  • Surface and boat traffic: Some boats pass directly over the reefs, especially on summer weekendsCarry a DSMB for the whole dive, not just the ascent
  • Overhead: Caverns, arches and tunnels are daylight-connected but still overhead sectionsKeep trim and buoyancy tight rather than settling on the structure

Marine Life

Centres that dive here

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Frequently Asked Questions

Is Sliema a good place to learn to dive in Malta?

Yes, and it's one of the more deliberate choices for it. Qui Si Sana specifically hosts training and try-dive sessions, while Fortizza Reef and Coral Gardens next door give a certified diver more terrain to explore the same afternoon. None of the three drops past about 15 metres, so the whole cluster stays within easy limits.

Are Fortizza Reef, Coral Gardens and Qui Si Sana different dive sites?

They're three named entries along the same short stretch of Sliema shore rather than three separate destinations. Divers usually treat them as one cluster: Qui Si Sana for training and simpler terrain, Coral Gardens for its valleys and swim-throughs, and Fortizza Reef, named for the old battery above it, for the longest run of caverns and arches.

Are the caverns at Sliema real caves?

No. Every description of this cluster uses cavern, arch, tunnel and overhang, all daylight-connected features where you can see the exit the whole way through, not a true overhead cave system. No cave certification is needed, though the tunnels reward the same buoyancy control any overhead section deserves.

Is Sliema good for night diving?

It's one of the more established night-dive spots on this stretch of coast, used regularly by local dive clubs. Octopus, squid and moray eels that stay tucked away by day come out after dark, and the shallow depth keeps the logistics simple compared with a deeper night wreck dive.

Do you need to worry about boats while diving at Sliema?

Yes, more than current or depth. Some vessels pass directly over the reefs, so a surface marker buoy is standard practice here, not an optional extra. Current itself is negligible along this stretch of shore.

Can you dive in Sliema without booking a boat trip?

Yes, all three entries are shore dives reached directly from the promenade, with parking, cafes and dive centres close by. A kilometre up the coast at Exiles, the shallow Tug 2 wreck offers a boat-free deeper option for divers who want more structure on the same trip.

What marine life will I see diving at Sliema?

Expect common octopus and moray eels, easiest to find on a night dive, plus scorpionfish and cuttlefish tucked into the reef by day. Seahorses turn up on lucky days in summer, but that's a rare bonus rather than something to plan a dive around.

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