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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. They are also a great visual reference on your ascents too.


The PADI DSMB specialty course will teach you the safest and easiest techniques to efficiently deploy a delayed SMB whilst static underwater and also whilst swimming.

Course Prerequisites

Knowledge Development


Knowledge development is delivered by your PADI instructor during the pre-dive briefings and gives you the opportunity to ask any questions you may have regarding DSMB selection and use.

Confined/Open Water Dives

  • 2 Open Water Dives

Price Includes​

  • PADI Certification Fee

  • Full Equipment Hire (Including SMB & Reel)

  • Air Fills

Continue The Adventure...

Drift diving can be exciting and offers a real adrenaline rush as well as some of the best opportunities to dive with large pelagics such as mantas and sharks. ​DSMB's are particularly useful during drift dives, allowing the dive boat to track your location as you surface from the dive. Combine  your new DSMB skills with the PADI Drift Diver specialty and you've got the perfect skill-set for some amazing diving. 

If you have completed 5 PADI Specialties & the PADI Rescue Diver course and have 50 logged dives, you qualify to register as a PADI Master Scuba Diver, the highest non-professional diver rating within PADI.

PADI Surface Marker Buoy
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