▁break water ▁and ▁then ▁a ▁northern ▁break water ▁was ▁constructed , ▁resulting ▁in ▁a ▁large ▁protected ▁and ▁safe ▁anch orage ▁now ▁known ▁as ▁the ▁' Out er ▁Har bour '. ▁The ▁eastern ▁break water ▁extended ▁from ▁the ▁rock y ▁head land ▁and ▁the ▁northern ▁break water ▁extended ▁from ▁the ▁beach ▁at ▁a ▁point ▁just ▁south ▁of ▁where ▁Tom ▁Th umb ▁L ago on ▁and ▁Allen ' s ▁Creek ▁em pt ied ▁into ▁the ▁sea . ▁An ▁advantage ▁of ▁Port ▁K emb la ▁over ▁other ▁potential ▁sites ▁for ▁a ▁port — W oll ong ong , ▁Bell amb i , ▁and ▁Lake ▁Il la war ra — was ▁that ▁there ▁was ▁suitable ▁stone ▁for ▁the ▁break w aters ▁nearby ▁and ▁that ▁the ▁first ▁part ▁of ▁the ▁eastern ▁break water ▁could ▁be ▁placed ▁on ▁an ▁existing ▁natural ▁re ef ▁extending ▁sea ward ▁from ▁the ▁rock y ▁head land . ▁ ▁Co al ▁J ett ies ▁( 1 8 8 3 - 1 9 6 3 ) ▁ ▁From ▁ 1 8 8 3 , ▁coal ▁was ▁sh ipped ▁from ▁an ▁ocean ▁jet ty ▁on ▁the ▁beach ▁just ▁to ▁the ▁north ▁of ▁a ▁rock y ▁head land ▁lying ▁to ▁the ▁north ▁of ▁Red ▁Point ▁and ▁Bo iler ' s ▁Point . ▁At ▁least ▁one ▁old ▁map ▁of ▁ 1 8 9 0 , ▁which ▁has ▁a ▁number ▁of ▁in acc ura cies ▁and ▁om issions , ▁shows ▁this ▁rock y ▁head land ▁as ▁" Red ▁Point " ▁although ▁Red ▁Point ▁is ▁the ▁head land ▁further ▁south