Been able to use a Delayed Surface Marker Buoy is an essential skill needed when in Open Water. You will have had a go at using one during your Open Water course, but this speciality will give you the knowledge and skills to be able to use one confidently and competently.
Your Next Adventure
As most open water dives, especially in the sea often require for all divers to have use of a DSMB then why not complete your PADI Boat diver speciality.
For more information about this course or other PADI courses then speak to the Scuba Dream Team.