Shark Alley
False Bay · South Africa
Shark Alley is the channel between Geyser Rock and Dyer Island near Gansbaai, world-famous as the highest-density great white shark aggregation site on earth. The cold, murky waters here pulse with energy year-round as great whites patrol the channel hunting Cape fur seals from the 60,000-strong colony on Geyser Rock. Bronze whaler sharks also frequent the channel in substantial numbers, and lucky divers may spot sevengill cow sharks cruising the kelp margins in the deeper sections.
Conditions
Depth
5 to 25 m
Open water and up
Current
Can be moderate
Can pick up on the edge
Visibility
6 to 14 m
Clearest in the calm season
Water
10 to 17°C
7mm wetsuit or drysuit
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 13 | 13 | 13 | 12 | 11 | 10 | 10 | 10 | 11 | 12 | 13 | 13 |
| Vis (m) | 3 | 3 | 4 | 5 | 6 | 8 | 8 | 8 | 6 | 5 | 4 | 3 |
| Current | Moderate | Moderate | Moderate | Gentle | Gentle | Gentle | Gentle | Gentle | Moderate | Moderate | Moderate | Moderate |
Your chances of seeing each animal
Cape Fur Seal
Last confirmed Jul 2, 2026 · 591 records
Almost always
Nearly every dive
Egyptian Goose
Last confirmed Jul 8, 2026 · 764 records
Almost always
Nearly every dive
Black Girdled Lizard
Last confirmed Jul 7, 2026 · 958 records
Almost always
Nearly every dive
African Penguin
Last confirmed Jul 7, 2026 · 879 records
Almost always
Nearly every dive
Southern Double-Collared Sunbird
Last confirmed Jul 6, 2026 · 875 records
Almost always
Nearly every dive
Bronze Whaler Shark
Last confirmed Feb 22, 2026 · 4 records
Likely
About 6 in 10 dives
Great White Shark
Expected
Known here, not yet in recent logs
Gear