The wastren bundary o the burgh, wi the Borough of Eastleigh, is the River Hamble. Tae the north is the City of Winchester; tae the east the City of Portsmouth, a unitary authority; an tae the sooth the Borough of Gosport. The sooth wast an sooth east edges o the burgh are baith pairt o the Breetish coastline, borderin the Solent.