 Krake ( German for " octopus " ) is a steel Dive Coaster roller coaster at Heide Park in <unk> , Lower Saxony , Germany manufactured by Bolliger & Mabillard . It is the first roller coaster of its kind in Germany . At a cost of 12 million euros , the roller coaster features floorless trains , 476 m ( 1 @,@ 562 ft ) of track , and a maximum height of 41 m ( 135 ft ) . The attraction officially opened to the public on April 16 , 2011 . 
