This is one of PADI's specialty materials. Deep Diver Manual (60 pages) Price: 5,901 yen This manual clearly explains the knowledge and techniques for safely diving deeper than 18m. It is also useful for the Advanced Open Water Diver course. Along with having a dive computer, let's thoroughly learn the meaning and risks of deep diving and dive safely. Although it is new, it has been stored for a long time. There are some scratches on the surface. *Please note that it may be sold out depending on the timing, as it is also sold on other sites. Deep Diving Manual