From 
The Diploma of NATIONAL PARKS of the Slovak Republic is issued by OTC SARA for connections with stations broadcasting from the territories of districts in which national parks of the Slovak Republic and protected landscape areas of the Slovak Republic are located. At least one QSO z okresov patriacich ku každému NP a ku každej CHKO musí byť uskutočnené s klubovou stanicou Old-Timers Clubu SARA OM9OT. Diplom sa vydáva aj pre poslucháčov za odposluchy obdobných spojení.
Connections from November 1, 2007 on all bands and all modes are valid. Connections do not apply cez prevádzače a spojenia z pretekov.
If you decide to get a NATIONAL PARKS diploma, Miloš OM3AA sent us an overview of parks and PLAs with district emblems and boxes for the data needed for the diploma application. You can download it .: HERE :.
You can find more detailed information about the diploma of the National Parks of the Slovak Republic as well as other OTC diplomas at: diploma page of the OTC. I wish you a successful first step...