Höltigbaum Nature Reserve

Höltigbaum Nature Reserve offers about 10 kilometers of marked trails across open heath and grassland straddling the border between Hamburg and Schleswig-Holstein, reached by S-Bahn S4 to Rahlstedt followed by bus 168 to the reserve entrance, with no fee required. The terrain is gently rolling, following the contours of a former military training ground that has been returned to nature since the 1990s, and the trails themselves present no significant elevation gain or technical difficulty. Because the site's history includes decades of military use, visitors are asked to stay on marked paths rather than cross open grassland freely, even though the main trail network has long been cleared and signed for public access. The route offers little shade, running mostly across open heath and meadow, and rewards visitors with long, uninterrupted sightlines that are rare within Hamburg's city limits. Along the way, trails pass grazing areas for Konik ponies, used for conservation grazing to maintain the grassland habitat, and open meadow that supports skylarks and other ground-nesting birds. There are no refuge huts or water sources within the reserve, so visitors should carry water and sun protection for the full 2.5-hour circuit, particularly in summer when the open terrain offers no relief from direct sun. Shorter marked loops branch from the main trail for visitors with less time, and the reserve's cross-border location means some paths continue into Schleswig-Holstein before looping back.