It is now possible to obtain a visa upon arrival at any Slovenian airport. The cost of a 30-day visa is €30 (as of October 1st, 2018). A 60-day visa costs €60, and a 90-day visa costs €90. The Slovenian embassy in your home country can help you apply for the correct type of visa. If you are traveling with children, they will also require a passport and an EU Health Card or travel insurance.