free-diving , competitive apnea, dynamic apnoea, free-diver, freedive, freedive training, freediving, free dive, free diving, skin diver, skin divers, skin diving, snorkel diving

Write the above sentence using proper case.
Free-diving , Competitive apnea, Dynamic apnoea, Free-diver, Freedive, Freedive training, Freediving, Free dive, Free diving, Skin diver, Skin Divers, Skin Diving, Snorkel diving