A rough rule of thumb is that you burn about 100 calories per mile walked - speed doesn't make a huge difference. While your sons walking pace may be 2 mph, I am guessing that over 6 hours you were stopped for a good chunk of time looking at animals, flowers, etc. So almost certainly you didn't cover 12 miles. You may want to use the fitness maps www.sparkpeople.com/resource/fitness
_maps_home.asp to retrace your route and work out how many miles you did cover. If you cover 6 miles, you may want to track this as 3 hours actual walking @ 2mph.
Also, the standard convention for calculating calories is to include your underlying metabolism calories as well, which is technically a double count. For a short (eg. 30 mins) intense workout, this double count is small and can be ignored. But for long duration less intense cardio it can become substantial.
So I'm not surprised you are gaining weight by eating as though you are burning 1450 calories - because almost certainly you are not burning anywhere near that.
- - M@L
We were actually out for 12 hours. When I gave the total of 6, I'd already subtracted the time we'd sat for lunch and dinner, etc. For example, he was at camp for 2.5 hours and I spent that time walking around running errands and also even jogged (to and from his tram stop). We walked around for an hour before his camp even started (arrived early). After I picked him up, we had to wait for the event at the zoo we were attending, so we sat for lunch for only about an hour, but then spent the intervening time walking around the campus and through the buildings. (It was my alma mater). The building in which we spent over an hour is a very old building with a single elevator, so we walked up and down its stairs a few times too.
I did not eat as if I'd burned up 1450 cals. I've never done that in any of these years. I ate as if I'd burned up an extra 200-300 - tops. When I said I ate additional calories on such days, I'm talking about when I couldn't stand the hunger any longer.
To give a better picture. I don't own a car. I lived in NYC all of my life until I moved to this nearby suburb. It's walkable to me - but likely only because I've walked for transportation for so many years. So, ALL of our adventures wind up being well over 9 hours because it's never easy to get back home for a brief period. At least when we've traveled to someplace special.
| current weight: 146.4