Porth Gwymon Mawr, Pembrokeshire

• Parish/Community: Mathry
• Unitary Authority: Pembrokeshire
• Region: Wales

• Category: Water Feature
• Type: Bay

• Latitude/Longitude: 51°57'41"N 5°6'59"W
• Eastings/Northings: 185987, 233806
• OS Grid: SM859338
• Mapcode Local: GBR CC.LRKN
• Mapcode Global: VH1QK.8YHS

Location and coordinates are for the approximate centre of Porth Gwymon Mawr within this administrative area. Geographic features and populated places may cross administrative borders.