you need to do a risk assessment and show covid safety measures are in place.
You should aim to keep numbers down to a manageable level bearing in minds some have anger issues . COuld you do two or three smaller groups,
Youll need help with supervising them to make sure they keep social distance, hygeine.
Get someone to declare they havent got symtoms, arent self isolating, havent had a positive test.
Good luck, your doing an important role