Nativity scenes in the Postojna Cave:

Christmas and NYE festive season
 

Day of culture and attractions:

8 February
 

Carters' Holiday:

the 1st Sunday in July
 

Erazem's Knight Tournament:

3rd Sunday in July
 

Military History Festival:

the 3rd weekend in September
 

Postojna Blues Festival,

every 3rd Thursday of the month, October to March