The unique building of Maritime Centre Vellamo is located by the sea, in the Kantasatama district, surrounded by the historical port of Kotka. Maritime Centre Vellamo is home to the Maritime Museum of Finland, the Kymenlaakso Museum and the Coast Guard Museum - all in one ticket. In addition to this, the building holds art exhibitions, a 200-seat auditorium, seminar rooms, classrooms, a restaurant with sea view, and a souvenir shop with unique and sustainable, often local, products. In the summer time you can also visit the Museum Icebreaker Tarmo and Lightship Kemi by the museum pier (separate admission). Maritime Centre Vellamo is a Green Key-certified sustainable destination.

Maretarium is a unique aquarium with Finnish fish species and with information of water protection in Finland. Besides aquarium there are souvenir shop Meripuoti and Café Merisydän.

“Green living room” of Kotka The Sibelius Park in the centre of Kotka, at the beginning of the Linden Esplanade of Keskuskatu, is an exquisite formal garden which is managed with a caring hand. The Sibelius Park in the middle of Kotkansaari is a "green living room" for local residents and tourists. The partly geometric and sophisticated design, old trees and beautiful summer flowers render the park especially attractive. The park was named after the world-famous Finnish composer Jean Sibelius in 1956.

The Sculpture Promenade of Contemporary Art with a length of approx. 2 kilometres traverses the centre of Kotka. The Linden Boulevard running parallel with Keskuskatu street won a national environmental structure award in 2001, when the first sculptures were also unveiled. In 2004, the Association of Finnish Sculptors granted the Pro Sculptura medal to the Sculpture Promenade. More than 20 sculptures have been placed between Port Kantasatama and Haukkavuori over a distance of approx. 2 kilometres. The sculptures are within a short walking distance of each other, and along the route there are cafes, restaurants, playgrounds and park benches if you wish to rest for a while. There is a separate brochure of the Sculpture Promenade.