The pororoca is a tidal bore, with waves up to 4 meters high that travel as much as 13 kilometers inland upstream the Amazon River. The word pororoca comes from the indigenous Tupi language, meaning "great destructive noise".
Warning: Unknown: Your script possibly relies on a session side-effect which existed until PHP 4.2.3. Please be advised that the session extension does not consider global variables as a source of data, unless register_globals is enabled. You can disable this functionality and this warning by setting session.bug_compat_42 or session.bug_compat_warn to off, respectively in Unknown on line 0