Yes, it's true.
We crossed the Equator early on Tuesday morning and are in the Southern hemisphere now. (It's good to be back by the way.)
This recent development means that our entire crew are now what the more experienced seafarers among us call shellbacks. Up until Monday those of us who had never crossed the Equator by ship were slimy pollywogs.
All of this maritime madness can be traced back to seagoing practices from earlier years. Sailors who had never crossed the Equator by ship were not considered well-travelled and labelled pollywogs - a horrible stigma for any sailor.
After an initiation and shellback ceremony, the sailors received certificates to verify their new status. This usually involved some form of celebration ... which is the perfect excuse for a chocolate!