This route will take you along many roads with low traffic through valleys of rivers Sutla, Sava and Krka. Along Savinja region in Slovenia route gets a bit hill but every short climb is rewarded with view.
Mandatory coffee stop is in Kumrovec at krčma (a.k.a. pub) “Kod Starog”.
Krčma „Kod Staroga” is a place to be which has, among drinks and food, quite a nice library of contemporary literature. If you are not in a hurry take a book and enjoy. It is interesting to find library in a local restaurant ?
Kumorvec is a place of some important history from medieval times and 20 century history. Kumrovec is most famous as a birth place of Josip Broz Tito and near by is a monument to Croatian anthem at Zelenjak and curia Erdody at Razvor.
In last section of route you are passing over wooden at Cerklje ob Krki, which is rarity nowadays.
Note: My English ain’t perfect, but we understand each other, don’t we?