Abu Bassala

A 1,050m St. John's reef in Egypt's Deep South with coral towers on sand, narrow caverns, and the area's standout night dive.

Last updated May 2026

The dive

Coral arouks stand spread across a sandy floor at 16 metres on the sheltered southern side, each tower its own small ecosystem of groupers parked in shadow, octopuses tucked between coral heads, and stonefish set into the substrate so completely that only the guide's light gives them away. The reef diverts most of the open current here, so the diving is methodical rather than fast: divers work between arouks at 10-20 metres, counting structures and taking compass bearings because the arouks look alike from below and there is no continuous wall to follow.

A second profile threads into the cavern system on the reef wall — narrow, long, entered around 5 metres, and meant for a guide who knows the passages or a diver with cavern training. After dark, the south-side coral gardens flip the site entirely. Shrimps emerge from the arouks, sea slugs crawl over coral, octopuses hunt in the open, and torchlight turns each coral tower into a close-range macro hunt. The reef carries three to four distinct routes across a liveaboard stop without doubling back.

What makes it special

Most Deep South sites lead with a single headline: a wall, a current, an apex predator. Abu Bassala does not. Its character is quieter and more pattern-rich, and divers describing the wider St. John's system say it carries more colour and shallower diving than the Brothers and Daedalus loop. Within that frame, this is the reef where the schedule slows down — the site liveaboard guides point to when they want a relaxed late-afternoon dive after a high-current morning, and the one they name as the standout night dive on Deep South itineraries.

Three features back the reputation. The aroukfield on sand carries a kind of diving that the wall-led St. John's sites do not offer. The cavern system on the reef wall adds a brief overhead option that other sites in the system lack. And the size of the reef — over a kilometre — supports the multiple dive routes that turn it from a single-dive stop into a meaningful itinerary anchor.

Know before you go

Set a compass bearing before descending. The aroukfield reads as scattered rather than linear and "underwater sightseeing tours" between identical-looking towers is a real risk if the navigation is loose. The caverns deserve more caution: long and narrow inside, and a guide who has dived the passages before is the difference between a fun overhead and a serious one. Cavern training is the realistic standard for any independent penetration.

A primary torch and backup matter for the night dive and for the cavern option, and serve in daylight too for the macro work between arouks. Liveaboards typically programme Abu Bassala for an afternoon dive and the night dive together, so pace the air and Nitrox plan for the back-to-back. November through February brings strong southern Red Sea winds that can cancel offshore plans, so the most reliable months for a Deep South itinerary are April through October.

Why Dive Abu Bassala

What makes this dive site stand out.

  1. 1
    Night dive reputation

    Operators name Abu Bassala as the standout night dive on Deep South itineraries

  2. 2
    Coral arouks on sand

    Isolated coral towers rise from a sandy seabed at 16-20m on the sheltered south side

  3. 3
    Cavern system at 5m

    Long, narrow caverns enter the reef wall at 5m and require a guide or cavern training

  4. 4
    Reef supports multiple profiles

    At 1,050m long, the reef carries three to four distinct dives across a liveaboard stop

  5. 5
    Anemone gardens with stonefish

    South side hosts fine anemone colonies with resident stonefish and baby whitetip sharks

Depth & Profile

5m
Min depth
30m
Max depth
10–20m
Typical range
ReefCaveSandCoral

Location

23.8300°N, 35.8200°E

Conditions

Temperature
22°C30°C
Visibility
15–30m
Current
mild

Difficulty & Certification

ModerateMin cert: AOWNitrox recommended

Easy in the open water on the south side where the reef diverts current. The caverns are long and narrow, advanced. Aroukfields can disorient divers without a compass bearing.

Frequently Asked Questions

Why do liveaboards schedule night dives at Abu Bassala?
The southern side is sheltered, the seabed sits at a comfortable 16-20m, and the coral gardens come alive after dark with shrimps, nudibranchs, and octopuses moving between the arouks. Liveaboard itineraries name Abu Bassala or Dangerous Reef as the best night-dive options on Deep South routes.
Do I need cavern certification to dive Abu Bassala?
Not for the main dive. The aroukfield and anemone gardens on the south side are open water and accessible to AOW divers with a guide. The caverns inside the reef wall are a separate, optional dive and are long and narrow enough that they call for cavern certification or a guide who has dived the passages before.
What makes Abu Bassala different from other St. John's reefs?
Three features in one reef: coral arouks rising from a sandy bottom on the south side, a cavern system inside the reef wall, and a night-dive reputation that other St. John's stops do not match. Where reefs like Habili Ali deliver shark-driven wall dives, Abu Bassala is the relaxed late-afternoon and night dive that anchors the schedule.
How many dives can you do at Abu Bassala?
Three to four distinct profiles fit on the reef across an itinerary stop, because at 1,050m long it can carry different routes from the same mooring. The western arouks, the eastern aroukfield, the cavern system on the wall, and the south-side night dive each give a different experience.
Is Abu Bassala suitable for newer divers?
The open-water south side is forgiving for competent Open Water divers with a guide, since the reef diverts most current and the seabed averages 16-20m. AOW is the realistic minimum for Deep South liveaboard itineraries overall, and the caverns themselves are not a beginner option in any case.
How is the coral after the 2024 Red Sea bleaching?
No site-specific report has surfaced for Abu Bassala. Area-wide signals across Marsa Alam in late 2024 were mixed, with parts of the southern reefs hit harder than others. Treat coral coverage as area-conditioned rather than guaranteed pristine, and ask the liveaboard guide for a current read on the day.
How do you get to Abu Bassala?
By liveaboard only. Boats depart Port Ghalib (about an hour from Marsa Alam International Airport) or Hamata on Deep South itineraries. The reef sits roughly 210km south-southeast of Marsa Alam, well offshore in the St. John's reef system, with no shore or day-boat access.

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