Whether you’re planning on coastal diving here in the UK or on your holiday, having a Delayed Surface Marker Buoy (DSMB) will increase your safety and comfort and will alert boat traffic and other divers to your location.
If you’re ever involved in drift diving from a boat then a delayed SMB will allow your boat skipper to follow your dive and pick you up promptly upon surfacing.
PADI Surface Marker Buoy
You must be certified as a PADI Open Water Diver (or have a qualifying certification from another training organisation similar to that of a PADI Open Water Diver)
Be 12 years of age or older