What Is a No Sub-Aqua Diving Sign?

The No Sub-Aqua Diving Sign is a highly visible UK-compliant water safety notice used to restrict deep diving or underwater breathing apparatus (scuba/sub-aqua) activities in hazardous or controlled waters. This sign is critical in areas where diving may interfere with marine operations, underwater infrastructure, or public safety.

Featuring a striking red prohibition symbol overlaying a diver icon, this sign delivers a clear and immediate visual message to prevent underwater entry where it is unsafe or unauthorised.

✅ Key Features & Benefits

✔️ Warns against scuba or sub-aqua diving
✔️ Ideal for ports, reservoirs, treatment plants, and conservation areas
✔️ Manufactured from durable weatherproof materials
✔️ Clear red symbol for instant recognition
✔️ ISO 9001 Compliant | UK-made signage
✔️ Multiple fixings and size options available

🛠️ Common Use Cases

⚓ Commercial ports and shipping zones
🌊 Coastal defence or marine infrastructure areas
🚷 Private lakes, reservoirs, or controlled-access waters
🔧 Industrial water treatment and intake facilities
🛑 Military or restricted diving zones

🧠 Summary

The No Sub-Aqua Diving Sign plays a vital role in preventing unauthorised underwater activity in potentially dangerous or legally restricted waters. It provides compliance with site safety protocols and ensures protection for both the diver and the facility.

📊 Product Specifications Table

🔗 Additional Useful Links