The cross-border route connects priority sites for ecotourism in the entire CBC area, following first-class and second-class roads, where possible.
In Bulgaria, the route starts at the Danube Bridge II at the city of Vidin, follows the main road E79 to the village of Dunavtsi, where it crosses Vidin Park; At the road fork to the city of Gramada, the route returns to the main road E79 near the village of Dunavtsi, where it goes west to the site Magura Cave, continues to the city of Belogradchik and the site Belogradchik Rocks – Venets; After Belogradchik, the route runs through the vast protected area Western Balkan Mountains – Fore-Balkan on a scenic road with possible turns to Chuprene and Chiprovtsi; After the city of Montana, the route goes back to the main road E79 to the city of Vratsa and the approaches to Vratsa Balkan Nature Park. From Vratsa, the route turns to site Bozhi most – Ponor, and continues east to the vast area of Karlukovo karst. After the city of Cherven bryag the route reaches the main road E83 and goes to the city of Pleven. There are several possible options to reach Studenets site, the main of which is through the village of Sadovets. After the city of Pleven, the route passes through the Vit River and reaches the city of Gulyantsi. Here, the main route turns east and crosses the Nikopol Plateau, Persina Nature Park and Vardim Island. West of Gulyantsi, there is a side circle, passing through the sites of Karaboaz, Ostrov steppe – Ostrov Marsh, Kozloduy, Zlatia, Tsibar, and Orsoya – Archar, thus making it possible to close the regional cycle. In the east, the main route turns from the Danube River after the Vadim site at the Studena River to reach the Rusenski Lom Nature Park. After Ruse, it constantly follows the Danube River to Silistra, including many of the most prominent Danube wetlands. In Dobrudzha, the route exits the Danube River range and heads southeast through the Suha River, the Batova River valley to reach the Black Sea coast at the Golden Sands Nature Park. In the last part, the route follows the Black Sea coast, including all coastal areas of nature conservation importance north of Varna. The route exits Bulgaria at Durankulak border checkpoint.
In Romania, running west to east, the route starts at the Calafat-Vidin border crossing, from where tourists can enter the Ciupercenii-Desa protected area using DN55A. The connection with Danube – Garla-Mare-Maglavit is made on E79 and then on DN56A. After that, they can either follow DN56C to reach Blahnita or continue on DN56A to reach Vanju Mare and then the route can go back to Danube at Garla Mare – Maglavit to continue to Blahnita, or they can make a direct connection via DJ606. The Zelezni Vrata Nature Park can be reached by taking DN56A, then E70, passing through Drobeta-Turnu Severin, direction Svinita. Then tourists cross the Mehedinti Plateau Geology Park following DN67 from Drobeta-Turnu Severin and then DJ670, passing through Isverna, Ponoarele and Baia de Arama. From Baia de Arama, they travel to Domogled- Valea Cernei National Park, following DN67D through Obarsia-Closani and Godeanu. From Baia de Arama, tourists follow DJ671B and DN67A to Strehaia, then enter via E70 and the Jiu River corridor, crossing Filiasi to Craiova. From Craiova, they enter via DN65 and travel to Bals, in the northern part of the Oltet River Valley. From Oltet River valley to Radomir Forest tourists can either get back from Bals to Craiova and follow DN6 to Radomir Forest, or cross Grozavesti and Dragiceni, or travel on DN64 and pass through Caracal. From Radomir Forest, they can enter the Jiu River corridor again to Bechet, and then from Caracal to Leu via DN 6 and then DJ604 and DJ551A to Bratovoesti. From there, tourists travel along the Jiu River corridor to Bechet, where they can enter Bulgaria at Oryahovo. From Bechet, they continue to the Estuary of the Olt River, where it flows into the Danube, following DN54A to Corabia and DN54 to Turnu Magurele, where they can also enter Bulgaria. From Turnu Magurele, tourists can reach Comana Nature Park or taking DN52 to Alexandria and from there DN6 to Stalpo and from there via DJ411 to Comana or along the Danube via DN51A to Zimnica, then DN5C to Giurgiu, making the connection to Bulgaria at Ruse. From Giurgiu, route continues on DN5 to Uzunu, from where they enter Comana on DJ603. They get from Comana to (Iezerul) Calarasi Lake, taking A2 and then DN3 or DJ412 to Prundu by getting to Oltenita via DN41 and continuing to Calarasi on DN31 or DN3. From Calarasi, tourists can continue on DN3B along the Borca Canal and to Borca, or cross the Danube through the Calarasi – Silistra border checkpoint. From Silistra, tourists can then enter the country via DN3 and reach the Danube Cliffs, the forest and valley of Canaraua Fetii – Iortmac and Dumbraveni – Urluia River valley – Vederoasa Lake, passing through Adamclisi and then by Murfatlar Fountain. From Murfatlar, they then take DN22C, DJ228, DN2A and DJ222 to Dobrudzha Gorges. Also, from Mourflatar they can go back to the Danube Cliffs via Cernavoda on A2 and then follow DJ223, DJ224, DJ225 and DJ226. From Dobrudzha Gorges, tourists can reach the Danube Delta (the part in Constanta County) on DJ222 to Gradina, DJ226B, DJ226A and DJ226 to Istria and Sinoe. From Istria, they travel to Tasaul Lake – Corbu via DJ226, crossing Corbu. Then the route continues through Navodari, Mamaia – Selo, enter taking E87 and travel by the shore of Siutghiol Lake. Further on, passing through Constanta, tourists take DN39 and DN39A to reach the Agigea sea dunes. They continue to Eforie Nord (North) on DN39 and pass by Techirghiol Lake and then to Mangalia, the road goes along the Black Sea coast and by the seaside natural areas: the Seaside area at Cape Tuzla, Costinesti-Douazeci si Trei August, Cap Aurora and Underwater sulphur springs in Mangalia. Between Mangalia and the Vama Veche Nature Site – 2 Mai, the road turns to the Hadjieni Forest – Cotul Vaii, crossing Albesti and Cotul Vaii. Then, tourists go back to DN39 and follow the road to Vama Veche – 2 Mai, where they can enter Bulgaria via the Vama Veche – Durankulak border checkpoint.
The border points to connect the two proposed routes on both sides of the border were defined so as to use the transport connectivity between the two countries as much as possible. The border points are given below, west to east:
– Calafat (Dolj) – Vidin
– Bechet (Dolj) – Oryahovo
– Turnu Magurele (Teleorman) – Nikopol
– Giurgiu (Giurgiu) – Ruse
– Calarasi (Calarasi) – Silistra
– Vama Veche (Constanta) – Durankulak