The road is quite straight from Säkylä to Vuorenmaa village and from there on it gets quite wiggling till Huittinen.
It's not rare to encounter military vehicle while driving this road, since Säkylä has Huovinrinne's garrison, which you can see early on the video, on the right side of the road. Well, kind of see it. It's in the middle of the forest.
Second part is the drive from Huittinen to Säkylä.
As other videos that I've published show that Huittinen is a hub.