Hawkcombe Water rises at Hawkcombe Head high on Porlock Common at an elevation of close to 1400 feet. Flowing easterly through a steep sided combe it reaches its confluence with waters that flow through Shillett Combe. Flowing on through Homebush Wood it reaches Hawkcombe, from where the flow turns to the north before it reaches Porlock where it is culverted to run beneath the main road. From Porlock the waters continue in a northerly direction to reach Porlock Salt Marsh and then the sea. From source to sea the waters journey close to 4 miles.