Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE swimmer ( id number, name text, nationality text, meter_100 number, meter_200 text, meter_300 text, meter_400 text, meter_500 text, meter_600 text, meter_700 text, time text )
TABLE: CREATE TABLE record ( id number, result text, swimmer_id number, event_id number )
TABLE: CREATE TABLE event ( id number, name text, stadium_id number, year text )
TABLE: CREATE TABLE stadium ( id number, name text, capacity number, city text, country text, opening_year number )

### Question ###
Find the names of stadiums that some Australian swimmers have been to.

### Accurate SQL ###

SELECT t4.name FROM swimmer AS t1 JOIN record AS t2 ON t1.id = t2.swimmer_id JOIN event AS t3 ON t2.event_id = t3.id JOIN stadium AS t4 ON t4.id = t3.stadium_id WHERE t1.nationality = 'Australia'