SDI Delayed Surface Marker Buoy (DSMB) Specialty Course – Rancho Cucamonga | Signature Scuba

A DSMB (Delayed Surface Marker Buoy) is one of the most essential safety tools a diver can carry—and knowing how to deploy it properly is a vital skill for boat diving, drift diving, and surfacing in high-traffic areas. The SDI Delayed Surface Marker Buoy Diver Specialty Course at Signature Scuba in Rancho Cucamonga will teach you the right techniques to deploy and use your DSMB confidently and safely.

Whether you're preparing for more advanced diving, planning dive travel, or just want to improve your underwater safety, this course is a valuable addition to your training—especially in Inland Empire conditions where boat and beach dives often require clear surfacing procedures.

Who This Course Is For:

Certified divers looking to increase safety and skill

Divers who dive from boats, in currents, or in areas with surface traffic

Anyone preparing for drift, wreck, or technical dive training

Rescue Divers, Advanced Divers, or those entering Divemaster programs

What You’ll Learn:

Types of DSMBs, reels, and deployment systems

When, why, and how to deploy a DSMB during a dive

Controlled deployment techniques from mid-water and bottom positions

Avoiding entanglement and emergency procedures

Proper signaling to surface support and boat crews

You’ll practice both dry skills and in-water deployment scenarios with guidance from experienced SDI instructors.

Course Details:

Minimum age: 18, or 12 with parental consent

Prerequisite: SDI Open Water Scuba Diver (or equivalent)

1–2 training dives (typically completed in one session)

Personal DSMB and reel recommended (available for purchase or rental)

SDI DSMB Diver Specialty certification upon successful completion

Why Train with  Signature Scuba?

Experienced instructors with real-world local and travel diving expertise

Training tailored to California conditions and boat procedures

Convenient location in Rancho Cucamonga, serving the Inland Empire

Ideal stepping stone toward Advanced, Rescue, or Tec dive programs

Be Seen. Be Safe. Dive Smart.

Location: Signature Scuba – Rancho Cucamonga, CA
Enroll Now: 909-476-8183

The SDI Delayed Surface Marker Buoy Specialty Course gives you the confidence to signal, surface, and communicate like a pro. Add this critical safety skill to your diving toolbox—your dive buddy will thank you.