Flow Festival: A 3 day festival in August celebrating electronic and urban music, and has all sorts of associated artwork and workshops too that you can enjoy with your friends and family. If you are in the area at the time do try to visit the festival as it is celebrated with soaring insignia every year. The whole festival is about enjoying yourself and there is music all over the place that will make you want to stay more. From scintillating decorations to the whole environment of the place the festival is a must go to.
In Sibelius Park you'll find the most well-known attraction in the city, a 24 metric ton sculpture dedicated to the compose Sibelius, it's very impressive.
National Opera – Helsingkatu 58 : + 358 9 403021. You can get discounts with a student card, and tickets are generally easy to obtain and cheap (thanks to massive subsidies from the government).