I'm pretty sure that it was the Trastevere food tour and those who went on it raved about it....see Kristy Hertz's trip report.
Seeing the Vatican and Sistine chapel at night was not the 2014 experience so although we had
ABD taking us we were there with the masses during the day...we had as I recall 30 minutes in the chapel with 1000 of our friends. As I remember John said that since this was an additional ABD trip out of their schedule, they couldn't do the night trip. John looked into the cost for the group but it would have been prohibitive.
I am going to relook at Chuck's vacation time.....we may "have" to try to come in 2 days early rather than 1 to have time to do several things.
For the evening cocktail group, the Bernini Bristol has a great rooftop bar....just saying....new members are always welcome
Chris