Underwater photo gallery by the Web master
The Web master who also is a diver displays part of his underwater pictures which he took in the sea of Iriomote by himself.  Although they may not be able to excess an armature level yet,  you can understand a charm of the sea of Iriomote very well.  (The copy rights of these pictures entirely belongs to the Web master)

     Between Iriomote Island and Ishigaki Island, a coral reef called "Sekiseishoko" develops very well.  In particular there are many diving spots around northern waters of Iriomote Island, so the diving services concentrate at Uehara and Sumiyoshi Villages.  
     Although people may have a considerable personal preference for a diving service, staying guests at Kanpira-so usually utilize Mr. Sakana Diving Service, Dive Service YANO, Hot Mangrove and so on.  However, the hotel and the diving service do not link together, you can utilize any diving service when you stay at Kanpira-so.  There are many other diving services near Kanpira-so.  As they are summarized in a table below, consider and chose your favorite one (but with regrets, all of the home pages of the diving services are in Japanese).  
     An experiential diving (diving with no licence) is also recommended.  If you are not a diver, once you try the experiential diving in the sea of Iriomote, you must be addicted to the scuba diving.  Once you are possessed with the scuba diving in Iriomote, you must want to get a diving licence (C card).  To acquire the licence, I recommend you to undergo a licence course in Iriomote rather than in a city.  Because it takes just 3~4 days, every actual practice is made in the actual sea with many beautiful corals, it is totally different from that in the city which is thoroughly made in a pool.