offshore_bob

I would say it depends on what you want to do, if you have the cash then try for a reservation at Restaurant Gron for michelin Nordic cuisine. Weekend brunch is also a big thing here, there are lots of places but for a tourist Ravintola Sunn might tick the boxes as it overlooks Senate Square and cathedral. I also like the Sori taproom, they are a craft brewer though brew in Estonia as its cheaper. Coffee and pulla (sweet buns) is a big thing in Finland, though finding good coffee can be a bit of a mission. That said, if you can get out to Cafe Regatta (which is near the Sibelius monument) then you can do coffee and pulla next to one of the Baltic sea inlets.

Use the trams to get about, and the Moovit app is good for working out which one you need if not in walking distance.

Just as a note, even though you're coming at the end of April, the Finnish weather has a thing called takatalvi which can rudely translate into winter coming back to kick you up the backside as snow at this time of the year is not unknown!