Information I was given was that the time was to be announced...

Information I was given was that the time was to be announced and those interested would have to advise the Company of their intention to attend so that they can be organised to accomodate whatever number of people there are.
There ere strict safrty rules in place as per the workplace H & S.
You hav to wear a safety jacket, protective goggles and
safety hat. You have to be read the "rules" and sign that you understand them. The plave is not big ,therefore not too many people could go round at once, and the above equipment would be in limited numbers.
If all investers turned up, you would be waiting a month to get round !!!

May the Force be with You