Welcome to Slovenija!
First if you dont know the mountain eria in Julijan Alps,i recomended first to buy necesary mountain map.Than better to ask the nearest mountain guide association for detail path,where you decide to go.Tends are for using them prohibited,because of Triglav national parc,wherever are allowed only on few places for example Bled-Zaka camp,Bohinj-Ukanc camp,but if you hawe with you good biwak sleeping bag,you can survive night comfortly in winter rooms near mountain houses or into them.
Tour on this mountains and tops are multiple,but this time they demand all winter equipement on higher places on mountains,because still lots of snow on them.Lower down to 2000m,specially on south erias paths are mostely under summer circumstances and easy to aproach.I suggest you mountains near Bohinj lake.They are not difficult and free of snow.
First day you went on highland Pokljuka on Runo polje 1340m with car,than climb through Konjščica,higher Jezerce 1720m and Studorski preval.There you can go on Vel.Draški vrh 2243m or a little farer on south grass eria on Tosc 2275m and ended day on Vodnikov dom mountain house.There you can sleep in vinter room,left(west)part of house.Next day you can go through Mišeljska pl. up to Jezerski preval on mountain Jezerski stog 2040m. and return down to pl.Jezerce and pl.Krstenica to pl.blato,or you went on Lazovški preval down to see beautiful pl.v Lazu,than go right circle through Pl Jezero and than Pl.Blato.
Next day you can go to look slovenian ski center with cable on Vogel and you made nice day tour on highest point Šija 20min higher than ski top.One chance is also tour on 1h30min farer piramide shaped Rodica mountain 1966m.
For all this mountains trip is necesary to have solid equipement(warmer cloths,gloves,cap,good shoes,first aid,sunglases,ice pickel,cooker,food and so one)Paths are marked and wisible,so you don hawe worried so much.
I wish all of you good trip on beautifull slovenian mountains,now between winter higher and a lot of roses green grass and forest round cowered with blue sky and white clouds.