We've taken an 11 month old. (And twice took kids younger than that). Get a sling or some other type of baby carrier. As babies, my kids were in the carrier instead of the stroller. But one trip with a baby had a baby who would only nap in the stroller, so I would take one as well. Plus, it's a great place to put your stuff! Make sure it's a stroller that will recline in case baby gets picky about sleeping. I used the sling as a sheet over the opening to block out the sights better during naps.
I did not use the baby care stations much at all. They were not conviently located. However, I did have to seek them out during the trip when my middle child was about 8 months since she was too distractable to nurse in public sometimes. With the other two baby trips, it was really easy to nurse wherever, whenever. The regular restrooms have changing tables. (However, due to a very active first child, I changed my babies pee diapers standing up as soon as they could stand. That makes changing tables only needed for the poop diapers).
*We always had a 3 year old in the mix when we had a baby. (And had a third child as well on our trip with an 11 month old). We did a single stroller for the three year old of the moment and a sling for the baby. (With the 3 year old walking during short time that baby was napping in the stroller during that one trip). It really wasn't hard to carry baby in the sling all day. My youngest was 24 lbs by 11 months and I was barely 100 lbs, and it still wasn't hard. Just make sure you're used to the carrier before you go. (Technically, your husband can help too but due to having more than one child, I always ended up carrying baby).