Sula lighthouse is a lighthouse

Lighthouse

A lighthouse is a tower, building, or other type of structure designed to emit light from a system of lamps and lenses or, in older times, from a fire, and used as an aid to navigation for maritime pilots at sea or on inland waterways....

 on the island of Sula

Sula, Sør-Trøndelag

Sula is an island group in the municipality of Frøya in Sør-Trøndelag county, Norway. It is located about west of Mausund and about northwest of the island of Frøya....

 in the municipality of Frøya in Sør-Trøndelag

Sør-Trøndelag

- References :...

 county, Norway

Norway

Norway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...

. The lighthouse was originally built here in 1793 and another in 1804. The current tower was built in 1904. It is part of a series of lighthouses along the municipality of Frøya including the Finnvær lighthouse

Finnvær Lighthouse

Finnvær Lighthouse is a lighthouse at Finnværet on the island of Valøya, part of the Froan islands in the municipality of Frøya in Sør-Trøndelag county, Norway...

, Vingleia lighthouse

Vingleia Lighthouse

The Vingleia Lighthouse is a lighthouse on the island of Skarvfleshølen about north of Mausund in the municipality of Frøya in Sør-Trøndelag county, Norway. It is located northeast of the Sula Lighthouse, southwest of the Finnvær Lighthouse, and southwest of the Halten Lighthouse....

, and Halten lighthouse

Halten lighthouse

Halten lighthouse is a lighthouse situated in the now uninhabited fishing village of Halten in the municipality of Frøya in Sør-Trøndelag county, Norway...

. The octagonal concrete

Concrete

Concrete is a composite construction material, composed of cement and other cementitious materials such as fly ash and slag cement, aggregate , water and chemical admixtures.The word concrete comes from the Latin word...

 tower is lit from July 21 until May 16 each year. It is not lit during the summer due to the midnight sun

Midnight sun

The midnight sun is a natural phenomenon occurring in summer months at latitudes north and nearby to the south of the Arctic Circle, and south and nearby to the north of the Antarctic Circle where the sun remains visible at the local midnight. Given fair weather, the sun is visible for a continuous...

of the region. The flashing white light can be seen for up to 18 nmi (33.3 km; 20.7 mi).