
Kultaranta is the official summer residence of Finland's President, situated on the island of Luonnonmaa in the Naantali archipelago. The 55-hectare estate features a National Romantic-style granite mansion designed by Lars Sonck and completed in 1915, complemented by over 40 additional buildings and structures set within forested parkland. The grounds showcase one of Finland's most well-preserved formal gardens, blending Finnish natural elements with European design principles and including a modernist addition from the 1960s. Following extensive renovations concluded in autumn 2024, Kultaranta opened to public visitors in September 2025, offering garden access on Friday evenings during summer months.