Thanks @AlienPrince for the brief translation!
Kim Hyun Joong started scuba diving as hobby to conquer his shark phobia caused by watching the movie 'Jaws' as a kid
HJ's scuba diving teacher Lee Won Hyung revealed, "Although HJ never met a shark so far, we'll prepare a meeting for HJ with a shark soon."
They prepare a meeting for Hyun Joong with sharks around March - April without HJ knowing.. (Guess now he knows? ^^)