There was a lot of construction work going on when we visited on Sunday 16th August. Now that was not just at the port but behind Cookies BBQ, there was cranes and construction noise.
My guess is this work is going on when the current ships are not in CC, but on Sunday 16th we were not expected until they change rout on the 15th, so construction workers etc, were already recruited for that day, there wasn't any construction on Friday 21st,