Surface marker buoys (SMBs) allow scuba divers to mark boundaries for mapping or search and recovery, alert boat traffic, or provide a line as a visual reference for ascending divers. During two dives, learn the proper techniques and protocols for using surface marker buoys and delayed surface marker buoys (DSMBs) in the local area.
Why choose us
The Cornish Diving Centre is one of the UK’s most active PADI 5 Star Instructor Development Centres, where we pride ourselves on providing the highest levels of customer service. Find out more