Sledgehammer was first performed live in 2004.
Caviana , the Ilha Caviana , is an island lying off the north coast of Ilha de Marajo in the delta lowlands at the mouth of the Amazon in the state of Para , Brazil .. Ilha de Marajo. Marajo. Amazon. Amazon River. Para. Para. Brazil. Brazil. The island forms part of the low-lying marajo varzea , the inundated land in and around the mouth of the Amazon River .. Amazon. Amazon River. The island is an excellent place to observe the tidal bore called the pororoca , where the Amazon river waters meet the incoming Atlantic tides and form a standing wave , and is a birdwatchers ' haven .. Amazon. Amazon River. tidal bore. tidal bore. pororoca. pororoca. standing wave. standing wave