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 VARCHAR, nationality VARCHAR )
TABLE: CREATE TABLE record ( swimmer_id VARCHAR, event_id VARCHAR )
TABLE: CREATE TABLE event ( id VARCHAR, stadium_id VARCHAR )
TABLE: CREATE TABLE stadium ( name VARCHAR, id VARCHAR )

### 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'