▁h ik ing ▁or ▁scr amb ling ▁to ▁the ▁top ▁of ▁the ▁cl iff . ▁ ▁It ▁is ▁the ▁most ▁common ▁style ▁used ▁at ▁ind oor ▁clim bing ▁walls ▁and ▁is ▁also ▁used ▁in ▁situations ▁where ▁other ▁methods ▁would ▁be ▁unsafe ▁or ▁environment ally ▁dam aging . ▁For ▁example , ▁in ▁Kent ▁and ▁Sus sex ▁in ▁south - east ▁England , ▁the ▁sand stone ▁rock ▁is ▁soft ▁and ▁pr one ▁to ▁er os ion , ▁so ▁placing ▁protection ▁into ▁the ▁rock ▁would ▁be ▁both ▁dam aging ▁and ▁un re li able . ▁There , ▁top - rop ing ▁from ▁permanent ▁anch ors ▁and ▁solo ▁clim bing ▁are ▁the ▁only ▁forms ▁of ▁as cent ▁allowed . ▁ ▁By ▁contrast , ▁in ▁some ▁other ▁areas , ▁top ▁ro ping ▁is ▁f rown ed ▁upon ▁for ▁various ▁reasons ▁– ▁including ▁possible ▁er os ion ▁from ▁people ▁trying ▁routes ▁too ▁difficult ▁for ▁them ▁or ▁a ▁lack ▁of ▁suitable ▁top - ro pe ▁anchor ▁points . ▁ ▁When ▁selecting ▁a ▁ro pe ▁for ▁heavy ▁top ▁ro ping ▁use , ▁a ▁large ▁diameter ▁( >= ▁ 1 0 mm ) ▁static ▁ro pe ▁( or ▁low - st retch ▁ro pe ) ▁is ▁recommended ▁for ▁the ▁anch ors ▁to ▁prevent ▁ro pe ▁wear ▁and ▁reduce ▁rock ▁er os ion ▁and ▁to ▁ensure ▁maximum ▁safety ▁in ▁the ▁event ▁of ▁a ▁fall . ▁A ▁dynamic ▁ro pe ▁should ▁be ▁used ▁for ▁the ▁clim bers . ▁It ▁is ▁important ▁to ▁ar range ▁the ▁anchor ▁system ▁in ▁such ▁a ▁way ▁that ▁the ▁clim