▁walking ▁through ▁the ▁park ▁and ▁camp ing ▁is ▁allowed . ▁ ▁The ▁park ▁is ▁named ▁for ▁the ▁L er der der g ▁River ▁which ▁has ▁cut ▁the ▁ 3 0 0 - met re - deep ▁L er der der g ▁G orge ▁through ▁sand stone ▁and ▁sl ate , ▁almost ▁bis ect ing ▁the ▁park . ▁ ▁Park s ▁Victoria ▁maintain s ▁six ▁designated ▁wal ks : ▁three ▁short ▁wal ks ▁of ▁ 3 . 5   km ▁or ▁less ; ▁Black wood - O ' B ri ens ▁Cross ing ▁and ▁return ▁( 2 2   km ); ▁O ' B ri ens ▁Cross ing - C owan ▁Track ▁loop ▁( 1 4   km ); ▁and ▁the ▁over night ▁walk ▁O ' B ri ens ▁Cross ing ▁to ▁Mack enz ies ▁Fl at ▁( 2 0   km ). ▁ ▁In ▁addition , ▁one ▁leg ▁of ▁the ▁Great ▁D ivid ing ▁Tra il , ▁the ▁L er der der g ▁Track , ▁passes ▁through ▁the ▁park , ▁entering ▁from ▁Black wood ▁in ▁the ▁park ' s ▁north west , ▁and ▁exit ing ▁south ▁towards ▁Bac chus ▁Marsh . ▁B icy cles ▁are ▁prohib ited ▁from ▁one ▁section ▁of ▁this ▁track , ▁due ▁to ▁a ▁conservation ▁area . ▁ ▁References ▁ ▁See ▁also ▁ ▁L er der der g ▁River ▁di version ▁tunnel ▁ ▁W omb at ▁State ▁Forest ▁ ▁Category : State ▁par ks ▁of ▁Victoria ▁( Austral ia ) ▁Category : B ac chus ▁Marsh <0x0A> </s> ▁The ▁Head