Mar Acuatic Resort is comprised of 38 dormitories distributed in three different floors. These dorms of 4, 6, 8, and 10 beds can be adapted depending on dorm assignment, which is determined by the age and gender of the participants.

The dorms are equipped with closets and fans, and each bed has its sheets, pillows, and blankets if needed.

The coordinators are in charge of the safekeeping of dorm keys. Therefore, they must keep everything closed during the course of the activity.