Minyan at the kotel

Hi,

People who are davening in an open space, such as the plaza in front of the kotel, are considered to be a valid minyan if there 9 near the chazan and able to hear him. Others who can see that core group of 10 may also combine with that group, as part of the minyan, even if they cannot hear the chazan.

(Rivivot Ephraim 1:45)

Have a great day,
Mordechai