There are many accessories available for diving. Some are luxuries you'll discover while browsing your local dive shop. Others are important for safety, enjoyment, or convenience. These include dive knives, dive lights, logbooks, gear bags, dive flags, spare parts, and signaling devices.

In this lesson, you'll learn what these items are used for, how to use them, and what to look for when purchasing these items.

After this lesson, you will be able to:

• Explain the purpose of a dive knife.
  
• List two benefits of a dive light.
  
• List the purposes of a logbook.
  
• Provide 2 examples of signaling devices.
  
• Explain the difference between the 2 dive flags.
  
• List items commonly found in a spare parts kit.