 Others can be found at Caer Bran, Castle An Dinas (Goss Moor), Castle an Dinas (Penzance), Castle Canyke, Kelly Rounds, Cadson Bury, Resugga Castle, Helsbury near Michaelstow, St Dennis, Gear fort, Lescudjack Hillfort, Prideaux Castle, and Castle Dore.Promontory forts or cliff top forts were also common in the Iron Age and examples of these are at Trevelgue near Newquay, Maen Castle near Sennen, St Michael's at Rame Head, Dodman Point (near Gorran Haven), Treryn Dinas (site of Logan Rock), Trereen Dinas (Gurnard's Head) and The Rumps (near St Minver).In Tudor times the coastal defences were strengthened (as by Henry VIII at St Mawes) and also at the time when a Spanish invasion was expected in the 1580s.