SSI Night & Limited Visibility Course

SSI Night & Limited Visibility — eLearning or Full Course

Experience the magic of diving after dark with the SSI Night & Limited Visibility specialty. This course teaches you how to safely and confidently explore the underwater world at night or in low-visibility conditions, using lights, navigation techniques, and teamwork to make every dive calm, controlled, and unforgettable.

Choose your course option

• eLearning & Certification Credit Only – Complete the academic portion online and earn your certification credit. You can then add optional in-water training later with Dorset Diving or another SSI Dive Centre.
• Full Course (with Dives) – Includes the online theory, certification, and practical in-water training sessions with an SSI Instructor. You’ll learn how to plan, prepare, and conduct night dives with confidence.

What you’ll learn online

• How light behaves underwater and how to use dive lights effectively
• Communication techniques using torches and hand signals in the dark
• Navigation and orientation during night or limited visibility dives
• Buddy contact, positioning, and teamwork underwater
• Planning, preparation, and safety procedures for low-visibility diving
• Understanding nocturnal marine life behaviour and environmental awareness

Full Course — Practical Training

The Full Course option includes in-water sessions with a Dorset Diving Instructor, where you’ll gain real experience and confidence by:

• Setting up and using torches and backup lights correctly
• Entering and exiting the water safely at night
• Practising communication, navigation, and buddy awareness
• Adjusting buoyancy and movement for low-light environments
• Observing and identifying nocturnal marine life safely and respectfully

Equipment & Costs

• All full courses include full kit hire, except for your mask, snorkel, and boots, which every diver should own personally.
• These can be purchased at Dorset Diving Services before or during your training.
• Entry fees to open water sites (such as Vobster Quay) and boat dives, if applicable, are not included.

Prerequisites

• You must hold an Open Water Diver certification (or equivalent) before taking the in-water sessions.
• Please confirm that your chosen dive centre offers SSI Night & Limited Visibility training if completing practical dives elsewhere.

Free Registration

Start your adventure today by creating a free SSI account and affiliating with our dive centre here:
Register with Dorset Diving

What’s Next?

Once certified, build on your new skills with other exciting SSI specialties such as Navigation, Perfect Buoyancy, or Wreck Diving. Each complements your night diving skills and helps you become a more confident and versatile diver.