I think I have the second and third, not first and fourth alas.
i was going to say Finland for 2. I thought 3 was New Zealand. Part of what I said there made no sense, if I intend to submit an answer I won't Google. Never googled 2. I would still guess at Finland.
Lauhanvuori N.P. is indeed in Finland - in the south of the country, not very far from Tampere.
One down, three still to get.