I will arrive in Nuweiba from Aqaba by ferry. I will get to St. Katherine Monastery right away, how ? When is the first bus or the last bus ?

The Monastery is opened from 9 am to 12 noon only, CLOSED on Friday & Sunday, yes ?

If I want to see the sunset or the sunrise, do I need to stay up overnight in the mountain for this ?

The following day, I shall come down & would like to cat my bus to Cairo; Is there a bus from St. Katherine to Cairo...what time would that be ?? Should I get the ticket in Nuweiba first ?

Thanks.