Bashing Stephen Elop is highly recommended. If this becomes as a weekend trip (fri-su) would someone has a summer cottage to use? My parents have one but it is in Kokemäki, 2.5h driving from the capital. But there would be enough space and a sauna. A small one (three at the time when not family members). It would be free to use and sleeping places to at least for 11 I think, couple more if needed. Three separate cottages on the same yard. With heating.