Grotto Guide Orientaton Course
Introduction Becoming a Guide The Grotto Risks Factors Bringing Divers Policies Gas Fills  

About the Grotto

As a Guide, you need to know about the Grotto — not only for your own information, but to be able to answer students’ and customers’ information as well. In this section, we cover:
  • What is the Grotto?
  • How Old is the Grotto?
  • The Shape of the Grotto
  • How Warm is the Grotto?
  • Thermal Protection
  • Dealing With Algae Bloom
  • Dealing With Duck Weed
     The Grotto
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