wˌaɪl ðɛɹˌɑːɹ nˈoʊ nˈoʊn dˈɛθs fɹʌm ˈɜːli kˈeɪv ɛksploːɹˈeɪʃən, ðɛɹ hˈæzbiːn æt lˈiːst wˈʌn sˈɪɹiəs ˈɪndʒɚɹi ɪn nˈaɪntiːnhˈʌndɹɪd sˈɛvənti fˈoːɹ wˌɪtʃ ɹɪzˈʌltᵻd ɪn ɐ sˈɪksˈaʊɚlˈɔŋ ɹˈɛskjuː.
While there are no known deaths from early cave exploration, there has been at least one serious injury in 1974 which resulted in a six-hour-long rescue.