Tip Nº 01
Merlin's bar opens at 18h and starts to fill with the social-introduction crowd around 19h30 — that's the time to come down. The host (named in 30+ reviews) is the one who runs the introductions, so check in before 18h if possible to get the first-handshake moment. Eggenberg dark €1,80 / Pilsner Urquell €2,20, last call around 21h45 (the bar closes at 22h sharp). Bring 200 CZK in cash for two hours of beer; card payment available but cash is faster.
Tip Nº 02
Travel Hostel's bar opens at 17h, an hour earlier than Merlin's, and you can string together: 17h-18h pre-bar drink at the on-site bar, 18h-19h30 sunset on the back balcony with the castle-view bar drink, 19h30-21h dinner at the on-site small restaurant (pierogi €5 + goulash €8 + Eggenberg €1,80). Total €15 for a four-hour evening you didn't have to leave the property for. Use this on the first night when the bus from Prague has worn you out and you don't want to walk to a riverside-terrace.
Tip Nº 03
The Krčma Šatlava walk-to from either bar at 21h-22h is the standard Krumlov hostel-bar evening pattern. From Merlin: walk south down Kájovská 100 m, turn left onto Šatlava lane, 1 minute total. From Travel Hostel: walk south down Soukenická to Náměstí Svornosti, then south down Šatlava lane, 3 minutes total. Šatlava's cellar fills up fast on Fridays and Saturdays (book a table at 18h on the day at the door, the host won't accept phone bookings) — for the fire-pit grill order the roast pork knee (€8, feeds two if you split with bread dumplings).
Tip Nº 04
Drinks-only pricing comparison for Cesky Krumlov: hostel on-site bar Eggenberg dark €1,80, Hospůdka U Plešivce locals' Eggenberg €1,50, Krčma Šatlava cellar Pilsner Urquell €2, U Dwau Maryí riverside terrace Pilsner Urquell €4, Latrán cobbled terraces Pilsner Urquell €4. Three nights drinking on the hostel bar then walking to Šatlava = €30-40 a head; three nights riverside-terraces only = €70-90. The hostel bar is the cheapest entry point into the Krumlov beer culture and the easiest way to find people to walk to Šatlava with.
Tip Nº 05
Both hostel bars close at 22h sharp — this is universal in Cesky Krumlov where quiet hours start strict (the residential neighbourhood reality). The Krčma Šatlava cellar is the only late-night option (open until 02h Fri-Sat, until 24h other nights). After 02h Sat-Sun the Old Town is silent — there is no 03h-05h bar option in Cesky Krumlov, no late-night taxi rank for a different-bar journey. Pace the evening: hostel bar 19h-22h, Šatlava 22h-02h on weekend nights, sleep on weekday nights.