Nad Dolským mlýnem is a small but remarkable peat bog hidden in the heart of Bohemian Switzerland, where a rare protected plant, wild rosemary (Rhododendron tomentosum), grows on an artesian spring within sandstone bedrock. It is a place that speaks more to naturalists than casual walkers, since it cannot actually be visited on foot.

The surrounding landscape is shaped by the deep, rocky canyon of the Kamenice River, which borders the bog to the north and east. The terrain is rugged and wild, cloaked in forest, with the damp, quiet atmosphere typical of peat bogs. It's a landscape that feels untouched, offering a glimpse into the untamed core of the Bohemian Switzerland National Park.

• No marked trail leads directly to the site - it is effectively inaccessible to the public
• The nearest settlement is Kamenická Stráň, within whose cadastral territory the bog lies

• Formerly a protected natural monument (until 2019), now safeguarded as part of Zone I of the Bohemian Switzerland National Park
• Entry off marked trails in this area is strictly forbidden
• The site protects a rare stand of wild rosemary growing on an artesian spring

Even though you can't walk right up to it, knowing that such a fragile peat bog survives deep within the sandstone canyons of the Kamenice adds a quiet sense of wonder to any hike through Bohemian Switzerland.