What the hell is bouldering anyway?

Darr and I are checking into gyms and I came across The Circuit Gym right across the river, a mere five minutes from our condo. My friend Jessica is a rock climber/boulderer (is that a word?) and from checking out her photos, I've learned that much of this involves holding your weight with your fingers and toes, which works fine for her, she's tiny. I'm not, hence the conversation that took place in the previous blog entry. It should be noted that losing 15 pounds isn't going to get me anywhere near the tiny size but it would put 15 pounds less pressure on my poor fingers and toes.