Key Summary
- Overview of Roman Rock as a popular boat-access dive site in Simonstown.
- Detailed insights into marine life, underwater terrain, and best diving practices.
- Guidelines on navigating no-take zones and spearfishing regulations.
- Essential safety tips for diving in busy waters and gear recommendations.
Roman Rock Dive Site
Roman Rock is one of False Bay’s most distinctive dive sites, located near Simon’s Town and famous for its iconic lighthouse. This site is accessible only by boat, making it a top choice for experienced divers and spearfishers looking to explore the diverse marine life of False Bay. However, it’s crucial to be aware of the marine reserve boundaries, as parts of Roman Rock fall within a no-take zone, where fishing and spearfishing are strictly prohibited.
The mix of protected areas and open waters makes Roman Rock a unique location for observing marine ecosystems while ensuring the preservation of biodiversity. It’s a rewarding site for freedivers and underwater photographers, given its stunning underwater topography and abundant marine species.





Getting to Roman Rock
Reaching Roman Rock requires a boat, typically launching from Simon’s Town harbor. The Roman Rock Lighthouse is a key landmark, making navigation easier for boat operators. Once on-site, it’s essential to anchor outside the reserve zones if spearfishing, to avoid fines for non-compliance with conservation laws. Boats must display a diver-down Alpha flag to signal that divers are in the water.
Roman Rock Location: 
Spearfishing and Diving at Roman Rock
Roman Rock is known for its rocky reefs, kelp forests, and deep underwater structures that attract diverse marine species. While spearfishing is allowed in designated areas, divers must stay vigilant about the boundaries of the marine reserve. Fishing within the protected zone is heavily regulated, with significant penalties for violations.
Spearfishers are drawn to Roman Rock for its abundance of Cape Hottentot, Galjoen, and occasionally Yellowtail. However, it’s essential to study the layout of the reserve to ensure compliance. The site’s varying depths and strong currents provide a thrilling challenge for seasoned spearfishers.
Diving Conditions at Roman Rock
The underwater landscape is varied, offering depths ranging from 17 to 35 meters, which accommodate both novice and advanced divers. The rocky formations, large boulders, and dense kelp forests create an intricate terrain to explore. The site is divided into:
- Shallow Sections: These areas, typically between 5 to 12 meters, are filled with kelp and smaller rock formations. They serve as a habitat for numerous fish and crustaceans.
- Deeper Areas: For more experienced divers, the depths extend beyond 25 meters, where larger fish like Yellowtail and Bream can be found. The deeper sections have steep drop-offs, which are ideal for underwater exploration.
Visibility at Roman Rock varies based on weather conditions. The best diving conditions are usually during Winter, particularly when Northwesterly winds clear the bay’s waters. Visibility can range from 5 to 15 meters, with water temperatures fluctuating between 12 and 18°C. Proper thermal protection is essential due to the cooler water temperatures.
Marine Life at Roman Rock
Roman Rock supports a vibrant marine ecosystem, thanks to its location on the edge of the no-take zone. Divers can expect to encounter a wide variety of species:
Cape Hottentot:
Common in rocky areas outside the reserve. A favorite among spearfishers.
Galjoen:
Often found near kelp beds and rocky crevices. Legal minimum size: 35 cm; daily limit: 2 per person.
Yellowtail:
Occasionally seen passing through the deeper sections, especially during the warmer months.
Crayfish:
Found hiding in cracks and crevices but are fully protected within the reserve area.
Shy Sharks and Pajama Sharks:
These small, non-aggressive sharks add to the diversity of the site.
Nudibranchs:
These colorful sea slugs are often spotted on the rocky reef, providing a pop of color to the underwater landscape.
The mix of shallow and deep areas at Roman Rock creates a habitat for various marine species, making it a great spot for underwater photographers and marine enthusiasts.
Best Times and Conditions for Diving
The ideal time to dive at Roman Rock is during the Winter Months. During this period, the North-Westerly winds help clear the waters, improving visibility. The average water temperature ranges from 12 to 18°C, making a 5mm wetsuit with an integrated hood essential for thermal comfort. Visibility can vary but often ranges from 5 to 15 meters on a clear day.
Because Roman Rock is accessible only by boat, it is crucial to monitor weather and sea conditions before planning a dive. False Bay’s conditions can change rapidly, so divers should always be prepared for sudden shifts in visibility and currents.
Safety Tips for Diving at Roman Rock
Roman Rock is a popular site for both recreational and spearfishing divers, so safety should always be a priority:
Use a Buoy Line:
This helps signal your position to boats, especially in areas with high boat traffic.
Diver-Down Alpha Flag:
Boats must display this flag to indicate that divers are in the water.
Respect Marine Reserve Boundaries:
Ensure that spearfishing is conducted outside the no-take zones to avoid fines.
Check Weather Conditions:
False Bay can experience sudden changes in conditions, so always check the forecast before heading out.
Dive with a Buddy:
Given the depth and potential currents, diving with a partner ensures greater safety.
Gear Recommendations for Roman Rock
For a successful dive, using the right gear is essential. Consider the following:
Wetsuits:
A 5mm wetsuit with an integrated hood is recommended due to the colder water temperatures.
Fins:
High-performance fins, like Freedivers Pure Carbon Blades, are perfect for maneuvering through kelp forests and strong currents.
Masks and Snorkels:
A low-volume mask, such as the Reef Inferno, ensures clear visibility.
Weightbelts:
Freedivers silicone weightbelts with 800g D-weights provide excellent buoyancy control.
Spearguns:
For targeting larger fish, use a 1m or 1.1m speargun, ideal for the open water around Roman Rock.
Buoy Line:
Essential for marking your position amidst boat traffic.
Dive Lights:
Useful for exploring deeper crevices and shaded areas.
Personal Insights and Expert Advice
Roman Rock is a dive site that requires careful navigation due to its proximity to boat traffic and the marine reserve boundaries. The thrill of diving here lies in its diverse marine life, from curious seals to large schools of Hottentot and Galjoen. The deeper sections are rewarding for experienced divers, especially those interested in encountering Yellowtail during the warmer months.
The stunning underwater topography, combined with the abundance of marine species, makes Roman Rock a must-visit for divers. However, always stay aware of the boundaries to avoid entering the no-take zone and follow all safety protocols for a successful dive.
Conclusion
Roman Rock stands out as one of False Bay’s premier dive spots, offering a blend of protected and open waters that cater to spearfishers and recreational divers alike. By respecting the no-take zone and following safety guidelines, divers can explore this unique site while contributing to the conservation of its diverse marine ecosystem.