Where was Joseph during Christ's crucifixtion?

I don't think The Bible says. One theory is that Joseph was an older man when he married Mary and had died prior to the crucifixion. This theory came about because Joseph was rarely mentioned in the bible, only really up to the point where Jesus was lost in the temple. It is very strange culturally for Jesus 'father' to be left out of stories, as men were seen as more important than women in biblical times. So no one really knows for sure, but that is one theory.