Last week we took our son to the New England Aquarium for the first time, and although the central tank was closed for renovation he had a great time. It was a little bit sad to see the tank empty and all the fish in the penguin area, not to mention the fiberglass smell that permeated the place, but I know we'll be back many times in the coming years, so I'm not too sad. Except for the poor fish who I'm sure were stressed by the move.
They warned us before we purchased tickets that the tank was under construction, and my wife had seen it on the website, so we knew what we were getting into. Because we went just after the marathon bombing there was a bag and stroller check before the line to purchase tickets; there weren't many people there that day.
The parking garage at the aquarium is always an issue. The garage that is closest to the aquarium, the one that shares its entrance, is NOT the one the aquarium validates for (unless you're an aquarium member). There is another garage to the south that the aquarium does validate for, and I know I've parked there before, but when the time comes I always forget which garage it is. Since my wife is a teacher and our son is under 3 they both got in for free, so we only had to pay for my ticket. And the $35 parking. If you are thinking of going I recommend you either take the T or know which garage you're parking in. There is a Parking Options at New England Aquarium page with the most current information. Take the T.