Kemps Quay Marina sits on the east bank of the River Itchen, approximately two miles north of the river mouth, in the Bitterne Manor area of Southampton. Established in 1913, it is Southampton's oldest marina and retains a small, family-run character.

The site offers around 260 berths in total, with 30 non-tidal berths afloat at all times; the remaining semi-tidal berths are accessible roughly two to four hours either side of high water over a soft mud river bed.

Approach by water is via the River Itchen, passing between starboard beacons No. 8 and No. 9, with a minimum depth of one metre at low water springs. Mariners are advised to monitor VHF Channel 80 when navigating the river.

The marina lies opposite Saxon Wharf and is reached by rounding the head of Saxon Wharf's jetty. Southampton city centre is a short distance away by road or a roughly 20-minute boat trip downstream to Dock Head.