Watch your head. Low ceilings in one place may require stooping. Carry water bottles in the summer. Because of the enclosed areas, the tour is not recommended for those who suffer from claustrophobia . Due to the electromagnetic frequencies emitted by the generators the tour is not recommended for those with defibrillators .
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If you exit the building you will have to reenter at the main entrance via the X-ray machines. Children under seven are not allowed on the Hard Hat Tour. Get information about the Traditional Tour here.