Shark Alley, Gansbaai
Protected Area
Dyer Island Nature Reserve Complex
Why dive here
With 269+ marine species recorded in the area - including blue sharks, blue whales, dolphins, dwarf minke whales and great white sharks - Shark Alley, Gansbaai offers some of Cape Town & Western Cape's richest diving. Water ranges 14-16°C, warmest February, March, April.
Shark Alley, just off Gansbaai, is probably what you picture when someone says "shark cage diving." It's not a dive in the traditional sense, more a floating encounter, tethered to the side of a boat. The action happens between Dyer Island and Geyser Rock, a narrow channel where you can expect to see great white sharks up close, drawn by bait from the boat. Visibility here can be a bit hit or miss, often murky, but that just adds to the suspense when a large shadow materializes. This is a bucket-list item for many, totally beginner-friendly, and a genuine thrill, even if it's more observation than exploration.
Safety Notes
Cold water this month (avg 15°C). Drysuit or thick wetsuit (7mm+) recommended.
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Conditions
Ocean conditions, forecast and tides for Shark Alley, Gansbaai
Shark Alley, Gansbaai Ocean Conditions
Monthly averages for Shark Alley, Gansbaai, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (-33.92, 18.46) (8km away)
October Averages
Sea Temperature
15°C
59°F · Range: 12.4–17.2°C
Air Temperature
17°C
62°F
Wind Speed
7.33 m/s
14.2 knots
Atmospheric Pressure
1018.1 hPa
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
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