My 28 month old gets really REALLY cold when I take her swimming - shivering, blue lips, etc. It's particularly a problem when the water is warmer than the air. She loves swimming, but I want to be sure to steer clear of hypothermia. Can anyone recommend a resource with guidelines for appropriate water and air temperatures for toddlers? Is there truly a risk of hypothermia for a toddler in an 85 degree body of water on a 90+ degree day?