Dive sites, seasons and marine life — researched, mapped, planned.
Menu
Destinations Dive Sites Marine Life Wrecks News
Plan a trip Trip planner When to dive Cost calculator Comparisons Marine-life calendar Water temperature Liveaboards Operators & resorts Marine parks Hyperbaric chambers World map
Regions Australia, New Zealand & East AsiaCaribbean & Western AtlanticEurope, Atlantic & MediterraneanIndian Ocean & East AfricaPacific Islands & MicronesiaRed Sea & Middle EastSoutheast Asia & Coral TriangleThe Americas & Eastern Pacific Countries
Learn & Tools All guides Certifications Gear guides Videos Ask the Data AI Agents API
About About us Methodology Disclaimer Contact
Your view
★ Saved

Your starred destinations, sites and species — stored in this browser.

API GATEWAY

Free read-only JSON access to the atlas's cached data.

Dark mode

🧭 Guided View
New to diving — depths, currents, certification levels? We explain every term as you browse, in plain English. Same data, with the help built in.

⚡ Expert View
You already know the difference between a wall and a drift. Just the data — clean, fast and compact. This is the default view.

Interface language
SS Nebo — illustrative image

SS Nebo

British steam cargo ship Sunk 1884 19–27 m Aliwal Shoal & Umkomaas
AI-generated illustration
Lives were lost hereThe crew took to the boats and reached safety. Local operators ask that the wreck be dived with corresponding respect.
Documented
Depth to deck
19 m / 62 ft
Maximum depth
27 m / 89 ft
Built / sunk
? / 1884
Orientation
Inverted (Hull Up)
Level
Intermediate
Best months
Jun–Nov

The story

The Nebo never finished her first job. The new British steamer left England in 1884 loaded with sections of railway bridge for the expanding Natal colony, and on 20 May, on her maiden voyage's final approach along the coast, she went down over Aliwal Shoal in heavy weather. The court of inquiry blamed the shoal; local legend has long argued about whether she struck it at all or was simply overwhelmed, capsized by her towering deck cargo — either way, her crew got away in the boats, and the brand-new ship settled upside down on the sand. That inverted attitude still defines the dive. She lies hull-up in about 27 meters, her plates now a reef roof: divers cruise the intact turn of the bilge, peer beneath the edges where the hull stands off the sand, and circle the prop and rudder area at the stern. Brindle bass and shoals of goldies have colonized her as thoroughly as the neighboring Produce, ragged-tooth sharks appear in the cooler months, and after 140 years she ranks among the oldest routinely dived wrecks on the African coast.

How she sank: Lost in heavy seas over Aliwal Shoal on her maiden voyage, 20 May 1884.

Diving her today

Condition: Inverted hull substantially intact after 140 years, with openings spreading along the seams

Penetration: Limited. Gaps under the inverted hull tempt divers in; treat them as true overhead spaces — dark, silty and for trained teams only. Entering any overhead environment requires specific training — a wreck certification at minimum, technical wreck training for full penetration.

Recommended certification: Advanced Open Water

Current: Moderate · Visibility: 8–25 m

Marine life: Brindle bass under the hull, harlequin goldies over the plates, seasonal ragged-tooth sharks, moray eels, and rays on the surrounding sand.

Hazards: Surge, current, and overhead spaces beneath the hull

Protection & law

Inside the Aliwal Shoal Marine Protected Area — historic wreck, take nothing

Watch

From the official channels

All videos →

Videos are embedded links to their creators' own channels — we host nothing and credit everything.

Sources: South African Department of Forestry, Fisheries and the Environment ↗Wikipedia ↗ · Facts verified against the sources above; fields without support are labeled not yet verified.

Australia, New Zealand & East Asia

Cairns & the Ribbon ReefsNingaloo ReefCoral Sea & Osprey ReefOkinawa & the Kerama IslandsPoor Knights IslandsTownsville & the YongalaGreen IslandIzu Peninsula

Caribbean & Western Atlantic

BonaireCozumelRiviera Maya & the CenotesBelize Barrier ReefGrand CaymanIsla Mujeres & CancúnRoatánTiger Beach & Grand Bahama

Europe, Atlantic & Mediterranean

Malta & GozoSilfra & IcelandThe AzoresCanary IslandsLarnaca & the ZenobiaScapa FlowArctic NorwayMadeira

Indian Ocean & East Africa

North & South Malé AtollsAri AtollBaa Atoll & Hanifaru BayAliwal Shoal & UmkomaasMafia IslandMauritiusSeychellesSodwana Bay

Pacific Islands & Micronesia

PalauChuuk (Truk) LagoonFakaravaKona, HawaiʻiRangiroaTaveuni & Rainbow ReefBeqa Lagoon & Pacific HarbourEspiritu Santo

Red Sea & Middle East

Sharm El Sheikh & Ras MohammedBrothers, Daedalus & St John'sDahabHurghada & El GounaMarsa Alam & the Deep SouthAqabaDaymaniyat IslandsMusandam Peninsula

Southeast Asia & Coral Triangle

Bali & Nusa PenidaKomodoRaja AmpatSipadan & MabulAnilaoCoronKoh TaoLembeh Strait

The Americas & Eastern Pacific

Galápagos IslandsCocos IslandFlorida KeysSea of Cortez & Cabo PulmoSocorro & the RevillagigedosBritish ColumbiaCalifornia Channel IslandsCosta Rica Pacific Coast