Sounds like an interesting event, hope you enjoy it. But don't count me in - I'm just not a city guy. I was raised in Wyoming, and even Denver is getting a bit too big and busy for me!
Looks like you're getting a good start on the same sort of weight loss I've experienced over the last couple of years. It can be a little tough at times. I enjoyed the additional exercise, especially once a few pounds had come off, but I really had to discipline myself about food - quality-wise as much as quantity.
But what you'll get when you get the weight off is worth it... More energy, a feeling of satisfaction, and a lot of friends and acquaintance you haven't seen in a while who don't even recognize you any more!!