Links

http://www.treinreiswinkel.nl/  - Best place to get your train tickets
https://www.visitljubljana.com/en/visitors/ - Tourist information site of Ljubljana
http://www.park-skocjanske-jame.si/en - Skocjan caves official website
http://www.postojnska-jama.eu/en/home/ - Postojna caves
http://www.portoroz.si/en/portoroz-and-piran/1803 - Piran
http://www.bled.si/en/ - Bled lakes area
http://www.np-plitvicka-jezera.hr/en/- Plitvice, Croatia