Welcome to Around Ulan-Ude
You could spend a week making day trips out of Ulan-Ude to explore Buddhist temples, Old Believers' villages and forgotten border settlements. The main routes south are the scenic Ulan-Ude–Kyakhta road, which hugs the Selenga River for much of the way, and the Trans-Mongolian Railway, which crosses the border at the unremarkable railway town of Naushki. Note that both Naushki and Kyakhta are officially off limits to foreigners as they fall within the border zone. Permits to visit these places should be arranged through UU agencies at least two months before you travel.