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Hotels, dive operators, gear, and how to get here are on the Aliwal Shoal location page.
Overview
Not a fixed reef but a moving feeding frenzy. Each winter the cold Benguela counter-current pushes a tongue of sub-21°C water up the coast, and billions of Southern African pilchard migrate northeast from the Eastern Cape along the Wild Coast into southern KwaZulu-Natal. Pods of up to 18,000 common dolphins herd the fish into bait balls 10–20 m wide, which copper (bronze whaler) sharks, Bryde's whales and dive-bombing Cape gannets shred within minutes. Divers and snorkellers drop into open blue water alongside a ball as it forms — spotter planes radio the boats onto the action, and most balls hold for under ten minutes. Surf launches, surge and cold green water make this a demanding expedition, run mainly in June and July.
Briefing note
Not a guaranteed dive — the run's timing and intensity vary year to year and some seasons underperform. Conditions are open-ocean: big swell, surge, surf launches and water as cold as 15°C. Most encounters are on snorkel or scuba in blue water beside the bait ball; baited shark activity and breaching whales mean disciplined briefings matter. Peak window is mid-June to late July.
What you'll see
6 species curated- seasonalSouthern African pilchardPeak: May · Jun · Jul
- seasonalCommon dolphinPeak: May · Jun · Jul
- seasonalCape gannetPeak: May · Jun · Jul
- seasonalBronze whaler (copper) sharkPeak: May · Jun · Jul
- seasonalBryde's whalePeak: May · Jun · Jul
- rareCape fur seal
Conditions
| Month | Water | Visibility | Current |
|---|---|---|---|
| Jan | 23–25 °C | 10–20 m | moderate |
| Feb | 23–25 °C | 10–20 m | moderate |
| Mar | 22–24 °C | 10–20 m | moderate |
| Apr | 21–23 °C | 10–18 m | moderate |
| May | 19–22 °C | 8–15 m | moderate |
| Jun | 16–20 °C | 5–15 m | strong |
| Jul | 15–19 °C | 5–15 m | strong |
| Aug | 16–19 °C | 8–15 m | moderate |
| Sep | 18–20 °C | 10–18 m | moderate |
| Oct | 19–21 °C | 10–20 m | moderate |
| Nov | 21–23 °C | 10–20 m | moderate |
| Dec | 22–24 °C | 10–20 m | moderate |
Season calendar
Peak season highlighted · current month outlined
Gear for this site
Beyond the basic kit- 5mm hood — Winter run water drops to 15-18°C and trips are long days in cold green water.
- Dive computer — Action ranges from the surface to 30 m with rapid depth changes while chasing a moving ball.
Next step
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