Bubbles in the Bathtub

One turtle, Timber, actually started a serious southward move over a week ago from where she had been hanging out off-shore of Deleware. For those keeping score at home, Sara and Timber are neck and neck and have been swapping the pole position for the last couple of days. Shellby got a late start and is lagging behind. Fluffy doesn't appear to be bothered by the recent cold weather and hasn't started a serious move, but seems like she may be starting to lean a little south.

How far south will they go before stopping? Are they all going to the same place? And, if so, who will get there first?

Inquiring minds want to know...