Located right on the 'Royal Route' between the market square and Wawel, this rock-themed flower-power hippie-dippie hostel was formerly owned by Goodbye Lenin, and they've left a good legacy. In addition to all the 'free love,' there's also free wifi, free large lockers, free linen, late check-out, a summer garden and plenty of other advantages, not to mention the location (oh, we already did that). They also have a karaoke bar called, yep, 'Let's Sing' which is open daily from 21:00 - 02:00.