I did this alone, with my 8 month old visiting my 3 month old. The plane ride was easy, but once I had both babies it was tough! They didn't like being in the hotel room, so they cried a lot. My 8 month old had become used to our routine, so she was all out of sorts - crying, cranky, wouldn't sleep, etc. When I tried to bathe one or feed one, the other would cry. This went on for 4 days... It was very difficult.
The best advice I can give is bring a double stroller. I don't know what I wouldv'e done without one. Like I said , they cried in the room. So, we sat outside and by the pool most the time. I can't really say I enjoyed the days. But at night, when my 8 month old was sleeping, I'd hold my new baby and just stare at her for hours.
I know it will be easier on the pick-up trip, because my husband will be with me.
