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_80 (zone VARCHAR, name VARCHAR, max_people VARCHAR, group_s_ VARCHAR)

### Question ###
Which zone has max capacity of 23 in a group under 2 at Robbers Roost?

### Accurate SQL ###

SELECT zone FROM table_name_80 WHERE max_people > 23 AND group_s_ < 2 AND name = "robbers roost"