Heathrow children's play areas - the non-permanent ones
Thanks! My kids are 5 and almost 3. The layover is just over 7 hours in total, but may be effectively more like 5 because our continuing flight is one with very, very early show-up time (el al). Even though we will have already checked in in BOS, you still need a lot of time.
The thing is (regarding this post and my hotel post) that we will be arriving at effectively the middle of the night, so we will really have to play it by ear with regard to how to spend the layover. I'm more drawn to the hotel, but there will still be a bit of time to play if the play areas are available.