Sighetu Marmației-Solotvyno border crossing
The Sighetu Marmației-Solotvyno border crossing joins northwest Romania at the town of Sighetu Marmației with southwest Ukraine at the town of Solotvyno. The Romanian side is located in the Transylvania region and the Ukrainian side in that country's Zakarpatska oblast.
This is one of the two border crossings between Romania and Ukraine where travellers are allowed to cross on foot, the other being Siret-Porubnoe border crossing. The Tisza River forms the border between the two countries here, and the two countries' passport controls are located on either side of a short pedestrian bridge.
The Romanian side can sometimes be strict about asking your travel plans and inspecting your backpack, but they are professional and will soon wave you through.