U Sudu, Czech for at the barrel, starts as a small ground-floor room on Vodičkova and drops into a maze of medieval cellars that the owners connected over the years. Prague City Tourism describes the underground as four interconnected basements, one holding foosball tables and another a dance floor.
Who would love it: anyone who wants to get pleasantly lost in an old Prague cellar over cheap wine. Who would hate it: a visitor after a polished, sit-down wine flight, because this is a rambling drinking warren rather than a tasting room.
The ground floor reads like an ordinary vinárna, but the staircase down opens into a Gothic-style network the regulars call hell, with two bars, a foosball room and a courtyard garden in summer. The European wine bar guides single out the scale of the place, which can absorb a crowd long after the surface rooms look full. The deeper you go, the more the cellars branch, and finding your way back to the bar is part of the experience.
The history explains the layout. U Sudu started in a single ground-floor room and grew over decades as the owners knocked through into the medieval cellars beneath the neighbouring buildings, a process Prague City Tourism describes plainly. The result is one connected underground space that feels far larger than the small street entrance suggests, which is why first-timers tend to underestimate it.
Drinks stay simple and local. Wines pour from the barrel by the glass at low Prague prices, with bottled vintages for anyone who wants to trade up. Order a glass of the house red from the barrel and take it down into the cellars rather than holding the ground-floor bar. The pours are generous and the prices low enough that a long evening costs less than a couple of cocktails would elsewhere in the centre.
Reviewers on Tripadvisor and Eating Europe note the same rhythm: local DJs play from Wednesday to Saturday, the rooms run until four in the morning, and the Lazarská night-tram stop sits around the corner for the trip home. It draws a student and local crowd more than a tour-group one, which keeps the prices honest and the atmosphere unpretentious.
Who it is for: a long, cheap evening with a group that likes to explore, or a late drink after dinner nearby. Who should skip it: anyone after a refined tasting, quiet conversation or a quick in-and-out glass.
The cellars reward exploring slowly. Each basement has its own character, from the quieter wine rooms near the entrance to the foosball room and the small dance floor deeper in, and regulars treat a night here as a wander rather than a single seat. The European bar guides note that the place can feel half-empty on the ground floor while the cellars below are packed, which is why arrivals often misjudge how busy it is.
Practical notes from reviewers: the bar stays cheap, the staff are used to lost visitors, and the Lazarská tram interchange a few steps away runs night services across the city. It is the kind of room that suits a long, unplanned evening rather than a quick stop, and it has held that reputation among students and locals for decades.
U Sudu is one of the most distinctive entries in our Prague wine bars guide, and a reliable late option inside the wider Prague bar guide. For more rooms built on a serious wine list, see our wine bars collection. Few wine rooms in the centre offer this much space for so little money.
