  
       
      
      Boyancy specialty
  
      Certification card
  
      Buoyancy
  
      Neutral buoyancy
  
      Neutral buoyancy at surface
  
      Change in buoyancy
  
      Buoyancy control 1
  
      Buoyancy control 2
  
      Buoyancy control 3
  
      Buoyancy control training 1
  
      Buoyancy control training 2
  
      Buoyancy control training 3
        | 
       
      
        
          
             
             | 
           
          
            
            
              
                
                  ■Leaf protect training
                  
If diver keep neutral buoyancy and can swim a little above the seabed always, diver fins will not break corals. 
                   | 
                 
                
                    | 
                 
                
                   
                   | 
                 
                
                  | 
                   
                  Install something like a hula hoop about 1m above the sea floor and train so that you can pass through it without touching it.  
                  In this training, you can master fine buoyancy adjustment.  
                   
                 Become a nature-friendly diver. 
                   | 
                 
                
                    | 
                 
              
             
             | 
           
          
             
             
             | 
           
          
            | 
            
             | 
           
          
             
             | 
           
        
       
       |