Rye Harbour lies about 2 miles from the centre of Rye itself, just over the Sussex border with Kent. It is essentially the mouth of the River Rother, which used to enter the sea at Romney, but changed course to Rye. The mouth of the river is enhanced by the rivers Tillingham and Brede, which join it.
There's not a lot, other than the lifeboat station, a cafe, and pub, because most of the land is a designated National Nature Reserve.
Once home to a large fishing fleet, it is now mostly occupied by pleasure craft.
However, it's a pleasant place to park up (decent free car park and loos) and take a stroll in the afternoon sunshine.