Simplify the following text for a Grade 5 native English-speaking person.
Original: Red Bend Catholic College at Forbes is a co-educational high school , with the campus at the site of the former Marist Brothers ' College , on the banks of the Lachlan River .
Simplified: Red Bend Catholic College at Forbes is a high school for boys and girls . It is on the site of the old Marist Brothers ' College , on the banks of the Lachlan River .