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 table_name_57 (location VARCHAR, students VARCHAR, year_opened VARCHAR)

### Question ###
What location was the campus opened in 2005 with students listed as na?

### Accurate SQL ###

SELECT location FROM table_name_57 WHERE students = "na" AND year_opened = "2005"