The fishing village of Garrucha suffered at the hands of Berber pirates until the year 1766 when barracks were built at Escobetas, a provisional military building. In 1769, the castle was completed at a cost of 181,000 reais. The fort was designed by the architect Francisco Ruiz Garrido. After its construction, Garrucha began to grow.
It is of masonry construction in three section. The central portion is rectangular with rounded short sides. Attached to the right lateral side, there is a truncated pyramid shape with sloping walls. In its upper part, a parapet is pierced with loopholes. The main body is attached to the left side, of lower height, without openings. It is accessed by an external staircase and one tranche that attaches to the right side.
References:The Broch of Clickimin is a large and well preserved, though somewhat restored broch near Lerwick. Originally built on an island in Clickimin Loch (now increased in size by silting and drainage), it was approached by a stone causeway. The water-level in the loch was reduced in 1874, leaving the broch high and dry. The broch is situated within a walled enclosure and, unusually for brochs, features a large 'blockhouse' between the opening in the enclosure and the broch itself. Another unusual feature is a stone slab featuring sculptured footprints, located in the causeway which approached the site. Situated across the loch is the Clickimin Leisure Centre.