From Villach follow the paved road or the bike path along the Drau river to the take off in Hart at your left to Wurzenpass. The ride down to Kranjska Gora. From there take the road 205 up to the Passo Vrsic. Steep paved road up and steep paved road down with a lot of sharp turns.You stay on 205 down the Soca valley until you reach Soca. There I stayed overnight in a very nice pension