jˈuːzɪŋ tɹɐdˈɪʃənəl tˈeɪp mˈɛʒɚz ænd kˈʌmpəs ɹˈiːdɪŋz, æz wˈɛl æz jˈuːzɪŋ ɐ lˈeɪzɚ mˈɛʒɚɹɪŋ dɪvˈaɪs, ðɪ ɛksploːɹˈeɪʃən tˈiːm sɚvˈeɪd ðɪ ɚɹˈɪdʒɪnəl hˈæf mˈaɪl ʌv kˈeɪv ænd ˈɔːlsoʊ dɪskˈʌvɚd ɐn ɐdˈɪʃənəl hˈæf mˈaɪl, dˈʌblɪŋ ðə lˈɛŋθ ʌv nˈoʊn kˈeɪv.
Using traditional tape measures and compass readings, as well as using a laser measuring device, the exploration team surveyed the original half mile of cave and also discovered an additional half mile, doubling the length of known cave.