Night and Limited visibility

SSI Night & Limited Visibility Specialty

Say Hello to the Dark

When the sun sets, daytime marine life goes to sleep. Nocturnal critters take over the reef, the coral lights up in a different way in torchlight, and the dive site is transformed.

Unfortunately the conditions are not always perfect and the visibility might be limited. Both at night and in limited visibility you need similar equipment, knowledge and practice so you can dive relaxed in more challenging environments.

You'll learn to use the dive torch as a communication tool in addition to simply adding light to your dive. You will also learn to dive safely even in low visibility conditions. This course is ideal to combine with the navigation specialty!

  • Who can take this course?

    • Minimum age 10 years
    • Open Water Diver
    • If you clear the medical questionnaire with only “NO” answers, you can sign up. Please consult your physician if you get any “YES” answers before diving
  • Duration

    • 1 day
  • Price includes

    • 2 dives
    • Equipment rental
    • Online materials - Rental kit (Online access to the digital training materials 3 months prior the certification)
    • Light refreshments on the boat; tea, coffee, water, fruits
    • Digital certification
  • Online training

    Download the SSI appOur course price includes rental kit version of the  Online training that can be used with an internet browser 6 months prior your certification. However we recommend our students to upgrade their materials to diamond access. Benefits:

    • Download the SSI appLifetime Online & Offline access to digital training materials
    • 2-year access to the Digital Divelog on the DiveSSI app
    • Downloadable to 3 different devices

    Upgrade to diamond access +1,000 THB / course

    If you change your mind later and want to upgrade to diamond access, please email us This email address is being protected from spambots. You need JavaScript enabled to view it.



Come experience this!



  • 6.500 THB


Lifetime Online & Offline access to the digital training materials
  • 1.000 THB

Upon booking you are required to pay a deposit of 2.000 THB.


Give us a shout

Office hours 9:00-18.00

Mob. +66860699244 (Whatsapp) 

This email address is being protected from spambots. You need JavaScript enabled to view it.

Photo credits to Fat Fish Movies, Anna Kekkonen, Irena Stangierska, Fredrik Lindblad and Mikko Paasi

Copyright 1987 - 2020 Koh Tao Divers. All rights reserved.
TAT license #34/01497