SDI
Night Diver Speciality
Night Diver Speciality
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Who is this course for?
Who is this course for?
Individuals that wish to explore the underwater world at night, along with the nocturnal wildlife.
Course prerequisites
Course prerequisites
Open Water Scuba Diver, Junior Open Water Scuba Diver, or equivalen.
Minimum age 18 , 10 with parental consent
What you can expect to learn
What you can expect to learn
The Night/Limited Visibility Course takes an in-depth look at all of the following and more:
Why dive at night?
Different aquatic life
Experience in limited visibility
Special equipment
Diving lights
Importance of light and back up
Comparison of different styles
Personal dive beacon
Buddy system
Buddy contact
Communications
Navigation
Bottom contour
Compass
Boat
Beach/Lake
Marker light/strobe
Disorientation
With buddy
Lost buddy
Light failure
Buoyancy considerations
Emergency procedures
Disabled diver
Lost diver
Diving maladies
Underwater environment
Nocturnal life
What's in it for you?
What's in it for you?
Upon successful completion of this course graduates may:
Dive at night and in limited visibility conditions they were exposed to during trainingPlan and execute a night and low visibility dives
Also, the Night/Limited Visibility Diver Certification counts towards a single specialty rating to achieve the Advanced Diver Development Program.
Night Diver minimum requirements
Night Diver minimum requirements
Plan dive
Safety procedures
Enter and descent
Remain submerged at least 20 minutes
Change direction several times while maintaining proper navigation
Two minute swim without compass
Surface and reorient
Descend and navigate
Use properly; underwater light, submersible pressure gauge, compass, depth gauge, and computer
Maintain buddy contact throughout dive
Log dive




Many divers find that night diving is their favorite type of diving. As with all specialty diving applications, procedures are different than those associated with open water diving. The purpose of this course is to acquaint the open water diver with the procedures, techniques, and potential hazards associated with diving at night, or in limited visibility. Becoming familiar with the use of dive lights, and night diving techniques such as navigation, buddy system procedures, communications, buoyancy control, and interacting with nocturnal aquatic life, the diver can safely enjoy night diving.

Night diving requires different skills from diving during the day. The Night Diving and Limited Visibility specialty is the best way to learn about night diving and practice the techniques you will need to become a safe and confident night diver. In this program, you will be provided with all the knowledge and skills you need to safely and comfortably dive at night or in limited visibility conditions. With a combination of online learning and open water training dives, you will learn how to enter and exit the water, use specialized equipment, and how to communicate with your buddy easily at night or in limited visibility. Upon completion, you will earn the Night Diving and Limited Visibility specialty certification and be ready to go night diving with confidence.

One of the most mesmerizing elements of night diving is bioluminescence, so do not forget to look for this natural phenomenon by holding your dive torch beam close to your body or by covering it with your hand to prevent all light from escaping, and then by just waving your hand through the water you should see streams of tiny, marine fireflies dancing off your fingers.