As the capital of Finland, Helsinki, is a modern Scandinavian lively city by the Baltic coast. During summers, the city atmosphere is high and characterized by various summer attractions, great food, culture and activities. The must try while being in Helsinki are various public Saunas by the sea, small islands and national parks.
To see full guide of activities see: https://www.myhelsinki.fi/fi
There are many public Saunas in Helsinki that can be visited. Most of them require pre-booking.
Allas Seapool
https://www.allasseapool.fi/en/
As Helsinki is a rather small city by the sea, there are many small islands and nature worth of visiting while being in Finland. There is either public or private transportation to many islands with a small fee and the national parks are reachable by public transportation just 1/h hour from Helsinki City Center.
Lonna
Suomenlinna
https://www.suomenlinna.fi/en/
Pihlajasaari
https://www.hel.fi/helsinki/fi/kulttuuri-ja-vapaa-aika/ulkoilu/saaristos...
Nuuksio National Park
The best places to find authentic Finnish design are stores such as Iittala and Artek, which selections include home decor and accessories designed by the famous Alvar Aalto. For clothing and textiles you should head to Marimekko. Traditional Finnish handcraft can be found at the Market Square near the harbor called Kauppatori.
Iittala
https://www.iittala.com/gb/en/home
Marimekko
https://www.marimekko.com/gb_en/
Museums
Architecture
Design