▁navigation ▁purposes ▁exists ▁on ▁Lady ▁Mus gra ve ▁Island ▁with ▁a ▁l ighth ouse ▁was ▁constructed ▁on ▁Lady ▁Mus gra ve ▁Island ▁in ▁April ▁ 1 9 7 4 . ▁The ▁light ▁is ▁controlled ▁and ▁maintained ▁by ▁the ▁Australian ▁Mar itime ▁Saf ety ▁Author ity ▁with ▁ins pe ctions ▁of ▁the ▁light ▁are ▁undert aken ▁by ▁hel ic opter , ▁and ▁an ▁area ▁of ▁the ▁le ase ▁is ▁set ▁aside ▁for ▁landing ▁purposes . ▁The ▁facility ▁is ▁maintained ▁using ▁an ▁am ph ib ious ▁vehicle ▁launched ▁from ▁a ▁maintenance ▁vessel . ▁ ▁Much ▁of ▁this ▁area ▁comes ▁under ▁the ▁Cap ric orn ia ▁C ays ▁National ▁Park ▁with ▁current ▁us ages ▁including ▁camp ing , ▁permitted ▁on ▁four ▁c ays ▁up ▁to ▁the ▁following ▁limits : ▁ ▁North ▁West ▁Island ▁ 1 5 0 ▁camp ers ▁Lady ▁Mus gra ve ▁Island ▁ 4 0 ▁camp ers ▁ ▁M ast head ▁Island ▁ 6 0 ▁camp ers ▁( 3 0 ▁from ▁October ▁to ▁March ) ▁ ▁Try on ▁Island ▁ 3 0 ▁camp ers . ▁( Current ly ▁closed .) ▁ ▁The ▁island ▁has ▁no ▁fresh ▁water ▁supply , ▁so ▁visitors ▁need ▁to ▁bring ▁all ▁fresh ▁drink ing ▁water . ▁A ▁comp ost ing ▁to ile t ▁is ▁available ▁on ▁the ▁island . ▁ ▁The ▁area ▁also ▁has ▁many ▁vis its ▁by ▁both ▁passing ▁vessels ▁cru ising ▁the ▁Queensland ▁coast ▁and ▁day ▁tri ppers ▁in ▁fast ▁jet ▁cat amar ans ▁( typ ically ▁Lady ▁Mus gra ve ▁Island ). ▁ ▁The ▁area ▁is ▁also