Explore Natural Overhead Environments Within the daylight zone

Cavern Diving is SSI’s premier entry-level natural overhead-environment program. Designed to take your diving beyond open water, it develops disciplined line handling, conservative gas management, precise buoyancy control, and effective team communication. Remaining strictly within the daylight zone and utilizing simple single-line navigation with the rule of sixths, you will learn to evaluate cavern sites, deploy continuous guidelines, and manage emergencies. Through a combination of digital learning and practical, performance-based training, you’ll gain the confidence and competence needed for safe overhead exploration.

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Facts and Training Standards

Amount of Academic Sessions

 

7

Amount of Pool/Confined Water Sessions

 

1

Amount of Open Water Sessions

 

4

Maximum Training Depth

 

40 m / 130 ft

Suggested duration (h)

 

12

Certification Prerequisites

 

Open Water Diver certification, Minimum 24 logged dives

SSI Standards
Languages
english
English

Master Essential Overhead Skills

Here are the benefits you can expect from attending this training program:

Install and follow a continuous guideline while applying the rule of sixths

Maintain precise buoyancy, trim, and non-silting propulsion techniques

Respond to emergencies and protect fragile natural formations

Continue Your Overhead Training

Expand your limits with advanced programs like Cave Diving, Limited Mine Diving, and Extended Range.

More Information

Training Prerequisites

SSI Entry-Level Programs – Open Water Diver, Freediver, or Mermaid require students to complete a water fitness evaluation prior to open water training. The goal of this evaluation is to determine a comfort level baseline consisting of:

Swim Assessment

Survival Float

Technical Requirements

To start training, students must create a MySSI profile. This can either be done via the SSI website at www.divessi.com/register or by installing the MySSI App.

Simply download the app for either iOS or Android, set up the user profile, and access the world of diving in minutes! The MySSI App safely stores everything in one place, online or offline – training materials, logbook, and certification cards. This includes Recreational Scuba, Extended Range, Freediving and Mermaid.

Training Center Selection & Affiliation

Every student must select an SSI Training Center as their “Training Partner” during the course registration process. Affiliation ensures personalized service and a high-quality training experience.

Students can also change affiliation or choose to affiliate with multiple Training Centers in their user profile. When affiliating with a Training Center online or via the MySSI App, a Privacy Policy Agreement will be processed to comply with GDPR regulations.

Medical & Administrative Requirements

Each student or candidate must complete the required SSI Training Record Forms prior to participating in any SSI training program. The forms for minors must be reviewed and signed by a parent or guardian.

Responsible Diver Code

SSI Responsible Diver Code - Scuba DivingSSI Responsible Diver Code - FreedivingSSI Responsible Diver Code - Extended Range Diving

Diver Medical Statement & Questionnaire or Physician’s Approval to Dive (where required)

Training Assumption of Risk, Liability Release, & Liability Release, & Hold Harmless Agreement (where required / not applicable within the European Union)

Program-specific Completion Record (done by the Instructor prior to certification)

Training Course Costs

Training consists of various components which are either charged singly or as a package depending on the selected Training Center. The components are:

Training Materials / Digital Kit

Tuition for Academics and In-Water Training

Open Water Training Dives

Certification

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