Luonnonmaa is an island in
Southwest Finland. The island is in the
Finnish Archipelago Sea
The Archipelago Sea (, ) is a part of the Baltic Sea between the Gulf of Bothnia, the Gulf of Finland and the Sea of Ă…land, within Finnish territorial waters. By some definitions it contains the List of archipelagos by number of islands, larges ...
(
Finnish: ''Saaristomeri'') region of the
Baltic Sea
The Baltic Sea is an arm of the Atlantic Ocean that is enclosed by the countries of Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Poland, Russia, Sweden, and the North European Plain, North and Central European Plain regions. It is the ...
, and located in the southernmost part of Finnish
territorial waters
Territorial waters are informally an area of water where a sovereign state has jurisdiction, including internal waters, the territorial sea, the contiguous zone, the exclusive economic zone, and potentially the extended continental shelf ( ...
. With an area of 44.0 square kilometers (17.0 sq mi), Luonnonmaa is one the tens of thousands of
islands
This is a list of the lists of islands in the world grouped by country, by continent, by body of water, and by other classifications. For rank-order lists, see the #Other lists of islands, other lists of islands below.
Lists of islands by count ...
,
islets, and
skerries that constitute the Finnish
Archipelago
An archipelago ( ), sometimes called an island group or island chain, is a chain, cluster, or collection of islands. An archipelago may be in an ocean, a sea, or a smaller body of water. Example archipelagos include the Aegean Islands (the o ...
.

Luonnonmaa is part of the
municipality
A municipality is usually a single administrative division having municipal corporation, corporate status and powers of self-government or jurisdiction as granted by national and regional laws to which it is subordinate.
The term ''municipality' ...
of
Naantali, a summer
resort town of around 20,000 people and major
tourism
Tourism is travel for pleasure, and the Commerce, commercial activity of providing and supporting such travel. World Tourism Organization, UN Tourism defines tourism more generally, in terms which go "beyond the common perception of tourism as ...
destination located within the
Turku metropolitan area.
Naantali proper consists of a
mainland portion in addition to approximately 1,000 islands,
of which Luonnonmaa is the largest. Luonnonmaa forms most of Naantali's area but has only a fraction of its permanent population.
Luonnonmaa is home to
Kultaranta, the official summer residence of the
President of Finland
The president of the Republic of Finland (; ) is the head of state of Finland. The incumbent president is Alexander Stubb, since 1 March 2024. He was elected president for the first time in 2024 Finnish presidential election, 2024.
The presi ...
.
References
Finnish islands in the Baltic
Naantali
Landforms of Southwest Finland
{{WesternFinland-geo-stub