Český Krumlov is full of family-owned pensions and little hotels, most of which are located right in the historical center. There are also quite a few youth hostels in Český Krumlov. You'll have plenty of accommodation options. Below are a few ideas:

Český Krumlov Hotels and Pensions

Český Krumlov:
Hotel Grand
Hotel Barbora

České Budějovice:
Penzion Restaurant Centrum

Search for all available hotels and pensions

Český Krumlov Youth Hostels

Hostel Merlin
Hostel99
Hostel Krumlov House
Hostel Havana
Hostel Postel
Hostel Egon
Travellers Hostel Soukenická

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Český Krumlov Camping

Southern Bohemia Camping