The Gauja Nature Trail in the territory of Strenči is one of the best places to take in the diversity and seasonal changes of the forest. A multitude of cultural and historical objects of different times can be found here as well. As autumn approaches, the forest attracts foragers, as it is one of the best wild berry and mushroom spots in Vidzeme. The forest also contains evidence of World War I, such as bullets, barbed wire, projectile chips and bunker sites. In this section, the Forest Trail passes the North Vidzeme Biosphere Reserve, which is the only and the largest nature conservation area of its kind in Latvia. Oak, elm and ash forests that are quite rare in Latvia grow in the floodplains of the river near Zemā sala (Low Isle) (by Gauja River near Spicu Bridge).