AD: Audio-described
Introduction and commentary of the visual aspects of a show to assist blind and visually impaired patrons. This is usually delivered via infrared headsets. These performances often include a Touch Tour where guests can also explore the more tactile elements.

BSL: British Sign Language interpreted
A British Sign Language interpreter will translate the spoken words for BSL users.

CAP: Captioned
Captioning displays dialogue and some sound effects as visible text on a screen or mobile device for anyone who would find this useful.

REL: Relaxed
A more relaxed performance environment that is suitable or people with an Autism Spectrum Condition, sensory and communication disorders, a learning disability or those with babes in arms.