Guides used by SCT are all highly qualified and have undergone a high level of training.
They are government licensed, and  speak several languages.
Explanations are given in English to facilitate comprehension of topics and information given to the group on museum visits.

Guides are happy to answer any questions from participants, and can expand on, or limit the amount of information, based on group interest, motivation, and participation.
Meeting times with the Tour Guide are strictly enforced. Delays cannot be tolerated, nor lost time recuperated.  
The Tour Guides are themselves on a schedule and have set times and rules.