Two rocks.
The one in Pöllökallio has only 6 routes currently. The rock quality is mediocre to bad, but at least Keilahalli, 7A is worth your time, and the other 5 are nice to warm up on. The rock is small, only 2-3 m tall. Landings are decent. Some shade but not a ton. Only one pad is required, but some routes might require stacking so 2 is recommended.
Porablokki at Rajatorpantie is also relatively small. It has an overhanging side with a decent 6C problem and some unclimbed hard(?) projects, a vertical side with an easy problem and two slab sides with a ton of easy routes. Two pads are recommended for the 6C, while the others you can handle with one small pad. There is no shade, and the rock is basically moss free, so it dries quickly! The spot is nice, although people walk past relatively frequently, and the rock is right next to a road so there is some noise from that. Otherwise this is a pretty decent place to climb at.