night / limited visibility diver

Many divers find that night diving is their favourite 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. 

• Individuals that wish to explore the underwater world at night, along with the nocturnal wildlife

• SDI Open Water Scuba Diver, SDI Junior Open Water Scuba Diver, or equivalent
• Minimum age 18 , 10 with parental consent

The SDI 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

Upon successful completion of this course graduates may:

• Dive at night and in limited visibility conditions they were exposed to during training
• Plan and execute a night and low visibility dives

Also, the SDI Night/Limited Visibility Diver Certification counts towards a single specialty rating to achieve the SDI Advanced Diver Development Program

• 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