my daughter the cyclist

I've been pulling my babies in a bike cart to the park for 4 years. Yesterday I only had to pull my 2 sons in the cart, my daughter rode her bike there. Round trip it was 5 miles plus she rode around the park a half dozen times once we got there. I'm guessing she rode a total just shy of 8 miles. That's A LONG WAYS for a 5 year old!