//
Cruises on Vesijärvi or to Päijänne beyond the Vääksy canal in Asikkala. Lunch or evening cruises to Vääksy, all day cruise to Heinola (Heinola timetable) or all day cruise to Jyväskylä in the far end of Päijänne (Jyväskylä timetable) with [https://www.paijanne-risteilythilden.fi/en/tuote/boat-trip-jyvaskyla-lahti/ return next day.
Sibeliustalo
Built in 2000, Sibeliustalo is an example of a modern wood construction and the largest wooden building built in Finland in a century. Finnish forests were the main inspiration for the architects. The building consists of four parts: The renovated ex-carpentry factory (the oldest industrial building still existing in Lahti, built by August Fellman in 1907 to serve as a kraft pulp factory with a sawmill, the building was extended many times and it served as a glass factory, wood meal factory, carpentry factory and wooden house factory), the Main Hall with wonderful acoustics, the congress centre and the Forest Hall (a beautiful lake scenery opening from Forest Hall's windows). Guided tours for groups of 1-13 persons. The ex-carpentry factory was renovated into a restaurant, offices and cabinets. Sibelius Hall host about 800 events every year: about 140 concerts from classical music to rock, pop etc.
A nice way to spend a summer day is to embark on a paddle steamer (stern-wheeler) to cruise Lake Vesijärvi. Remember to have an ice-cream onshore.
Lahti's radio and television museum is on Radiomäki (literally Radio Hill). You can see receiving and transmission equipment from the 1920s to modern times, and outdoors you can't miss the two long wave masts that can be seen from everywhere around the city.
There you can see the ski jumping hills, ski museum and Lahti stadium. In summer there is an outdoor swimming pool. It's also possible to buy ticket which allows you to use a chairlift and an elevator to get to the top of the ski jump which provides a panoramic view of Lahti.