Lerwick, on the east side of mainland Shetland, is a natural harbour on the sheltered waters of Bressay Sound. Surrounded by naturally deep water, there are two entrances – north and south – to the inner harbour and berthing areas. Access and approaches to Inner North Harbour and Greenhead Base areas have been deepened through various dredging programmes to depths 9 metres below Chart Datum.
On the east coast of Mainland, Shetland Islands, facing Bressay Island and just over 300 km. from Aberdeen, Bergen, in Norway, and Torshavn, in the Faroe Islands.
Latitude: 60º 09’N
Longitude: 01º 08’W
Northern limit is a line due east from Hawksness to meet line due north from Outer Score. Southern limit is a line drawn from The Skeo to Bard Head.
Under Keel Clearance
A minimum under keel clearance of 0.5 metres should be maintained at all times when manoeuvring within the harbour area.