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_18618707_1 (geographical_regions VARCHAR, contestant VARCHAR)

### Question ###
When  cristina peña garzon is the contestant what is the geographical region?

### Accurate SQL ###

SELECT geographical_regions FROM table_18618707_1 WHERE contestant = "Cristina Peña Garzon"