Shark Alley False Bay
Overview
Shark Alley in False Bay is a channel of cool Atlantic-influenced water between the mainland and Seal Island, a rocky outcrop roughly 5 kilometres from Simon's Town hosting over 60,000 Cape fur seals. The combination of abundant seal prey, kelp-covered reefs, and deep water access has turned this stretch into a natural amphitheatre for predator-prey encounters. The resident attraction is the broadnose sevengill shark, a prehistoric species with seven gill slits that has patrolled these waters largely unchanged for over 150 million years. The boat ride from Simon's Town was brisk, the southeaster pushing chop across the bay. We moored over a low reef in 12 metres, and I dropped into murky green but workable visibility. The bottom was a rubble field of granite boulders interspersed with kelp holdfasts, and almost immediately a sevengill materialised from the gloom. It was enormous, easily three metres, its broad flat head sweeping from side to side. It passed within two metres of me, close enough to see black spots speckling its grey flanks. Over 40 minutes, more sevengills appeared, cruising solo or in pairs with slow, deliberate grace, their seven gill slits flaring with each breath. A pyjama shark lay curled in a crevice, its striped body wedged tight. Dark shysharks hid under ledges with tails curled over their eyes in their namesake posture. A massive short-tail stingray glided across the sand, its wingspan nearly matching the sevengills. Cape fur seals shot through the water column like furry missiles, their speed a sharp contrast to the sharks' measured pace. Yellowtail schooled in mid-water, catching the light when they turned. On a winter blue shark trip offshore, the experience shifts entirely -- drifting in open blue water as sleek, electric-blue sharks circle the bait drum, their enormous black eyes and impossibly slender bodies exuding alien elegance. False Bay offers shark diving that is raw, cold, and visceral, a world away from warm-water cage dives further up the coast.
Marine life
Dive profile
DEPTH PROFILE
DEPTH PROGRESSION & WAYPOINTS: Shark Alley False Bay
Location
Near Simon's Town, in the Western Cape region of South Africa.
Frequently asked questions
How do I reach Shark Alley in False Bay?
Shark Alley is located in False Bay on the Cape Peninsula, approximately 40 minutes drive south of Cape Town. Dive operators depart from Simon's Town harbour, with the boat ride to the dive sites taking 10 to 20 minutes depending on conditions. Simon's Town is easily accessible by car or by the scenic Metrorail train from Cape Town. Several dedicated shark diving operators are based in the harbour.
Is it safe to dive with sevengill sharks?
Broadnose sevengill sharks are generally non-aggressive toward divers but should always be treated with respect. They are large predators reaching over three metres in length and may approach closely out of curiosity. Dive operators brief all participants on proper behaviour, including maintaining eye contact, staying low on the reef, and avoiding sudden movements. No cage is used for sevengill encounters. Incidents with divers are virtually unheard of.
What exposure protection do I need?
False Bay waters are cold, ranging from 10 to 18 degrees Celsius depending on the season. A drysuit is strongly recommended, particularly from June through October. A well-fitting 7mm semi-dry wetsuit is the minimum. Hoods, gloves, and booties are essential year-round. Despite the cold, the water temperature is precisely what attracts the sevengill sharks to the area, as they prefer cooler waters for hunting and breeding.
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Data Provenance
This profile is compiled from 3 operator submissions and 142 community logs. Key facts (depth, entry) are verified against official hydrographic charts.