How far is a 5K?

I have a goal, I want to run the Tinkerbell half marathon next year. I want to stay at the Disneyland hotel and hobble around disneyland the day after with a huge sense of accomplishment. In case you don't know, which I bet most of you do, a half marathon is 13.1 miles. I must say I get a bit nervous thinking about making it such a distance. But I know I can do it, especially since I would be jogging past my favorite attractions. Training must start immediately. First step is to start running, any distance, all the time. My wonderful friend Molly found me a double jogging stroller. It was a necessity, I couldn't imagine the cost of finding a babysitter every morning so I could run. So the new plan, starting next week everyday after I drop Gabriella at school I'll take the twins for a run. I hope they'll like it. Once I build up my distance there is a great park they can play at when we stop half way. I hope this works out, I hope I can stick with it. It's a year away, such a long time to keep up a goal. But with my Disneyland passes I can remind myself of the goal. The first goal will be to run a 5k. A fun run if you will. Hopefully I can accomplish that in March.