The city of Loviisa was founded in 1745, as a border fortress against Russia. It is named after Lovisa Ulrika, the Swedish Queen consort of Adolf Frederick of Sweden. The old town survived from the great fire in 1855 and is today one of the most vell-preserved wooden towns in Finland.
Narrow sandstone and cobblestone streets and small wooden cottages provide fashionable sights for visitors.
The sea stretches all the way to the town centre. The Laivasilta area is related to the region's sailing history and is characterised by its red salt warehouses, making it a popular area for meetings and events durin summers.
The small Grisslehamn village is today a well-preserved sample of 19th century architecture and popular attraction for daily trips. The name Grisslehamn was first mentioned in a document from 1376 about the mail route between Sweden and Finland. This Grisslehamn was located some 20 km south of today's location. In the mid-18th century, most of the old village was destroyed in a fire, and it was decided to move Grisslehamn to its current location to make the mail route shorter. Conveying mail by row boat from Sweden to Åland, from whence it was transported to the Finnish mainland, was, together with fishing, one of the most important sources of income for the inhabitants of Grisslehamn and other parts of Roslagen for a long time, until steam ships took over the mail routes in the early 20th century.
During the Finnish War in 1809 a small unit of Russian cossacks attacked to Grisslehamn over the frozen Gulf of Bothnia. In the battle 80 Swedish soldiers surrended and several were killed.
Today there are several buildings dating from the 19th century, like the toll station and old barracks. The post office was built in 1755 and the chapel in 1909.