Series was ended in 2008

	Mintage year	Name	Value	Issue date	Mintage
					Proof	BU
	1994	The Slovensky Raj National Park	500 crowns	10.04.1995	2,400	27,500
	1997	The Pieniny National Park	500 crowns	22.07.1997	1,700	14,500
	1999	The fiftieth anniversary of the declaration of the Tatras National Park	500 crowns	24.11.1998	1,400	12,000
	1999	The 500th anniversary of the striking of the first thaler coins at Kremnica	500 crowns	20.07.1999	1,400	12,400
	2000	The 250th anniversary of the death of Samuel Mikovini	500 crowns	18.04.2000	1,500	10,100
	2001	The Mala Fatra National Park	500 crowns	25.06.2001	1,800	10,200
	2001	The Beginning of the Third Millennium	500 crowns	15.10.2001	4,000	13,000
	2005	Protection of Nature and Landscape: Slovensky Kras National Park	500 crowns	31.03.2005	3,600	8,500
	2006	Protection of Nature and Landscape:Muranska planina National Park	500 crowns	30.03.2006	2,800	4,300
	2007	The Construction of the Old Fortress at Komarno - the 450th Anniversary	500 crowns	15.05.2007	2,600	4,600
	2008	Protection of Nature and Landscape: Low Tatras National Park	500 crowns	13.05.2008	4,800	4,300