Amount of Floors - 30 Unlock Criterea - After obtaining HM Surf from Solar Cave, go to Pokemon Square, a Spinda should appear and hand you the Transparent Feather. Take it to Xatu at the Great Canyon, then Xatu will grant you access Notes - Requires HM Surf, compulsory save before entry
Japan: November 17th 2005 US: September 18th 2006 Europe: November 10th 2006 Wii U Virtual Console Europe: 11th February 2016 Japan: 23rd March 2016 US: 23rd June 2016