Kalbådagrund lighthouse

Kalbådagrund lighthouse is a caisson structure with distinctive red and white horizontal stripes located in the Gulf of Finland near Porvoo. It stands on a concrete foundation and serves as a navigation aid for maritime traffic in the region.

The structure was built in 1952 at the Suomenlinna shipyard to replace an earlier lightship station. It became Finland's first caisson lighthouse in the Gulf of Finland.

The lighthouse represents maritime engineering developments of the 1950s, marking a transition from traditional lightships to permanent concrete structures.

The lighthouse is visible from the water and accessible by boat from Porvoo. Visitors should be aware that weather conditions can affect access to the structure during certain times of year.

The foundation extends deep beneath the water surface to anchor the lighthouse on a dangerous shoal. This engineering solution allowed a navigation light to be established at a challenging maritime location.

Location: Porvoo

Inception: 1952

GPS coordinates: 59.98556,25.59861

Latest update: December 12, 2025 14:22