Just looking for a little insight on Tallinn from those who have cruised there. Is it pretty easy and safe to walk to old town from the ship? I've checked out a few maps online, and it doesn't look too far. We will be there on a Sunday, and instead of taking a tour, would like to walk into town on our own to attend Mass at the Cathedral of Apostles Peter and Paul if we can. Maybe Regent provided a shuttle? Although, we really would rather walk if it's not too strenuous and the weather is nice.