Car-less trip to Joes Valley. Is it possible?

I am looking at doing an extended trip to Joes Valley (3ish weeks) and I would not have a car. I had a few questions to see if this might be possible.

How close is the camping to town?
How close is the camping to the climbing?
What is the vibe/crowd like in early april? Would it be easy to meet people to climb with and go into town with?
How accessible is a water source?

These may be stupid questions, but I would love to hear from some one who knows the area better if they thing this it is possible to do.

Sorry this response is a little late, but hopefully it'll still help. I'm definitely not the best person to answer this, as I've only been there a handful of times, but I'll offer what information I can.

From town to camping/climbing is not all that far by car, ten to 15 minutes if I'm remembering right. Maybe a little longer depending on where you're climbing. The camping to the climbing is generally very close. You can't camp near all of the climbing areas, but pretty much all of the camping areas have climbing nearby. Water source is tough for one area, and easy for the other. There's a creek alongside one half of the fork - but I'm totally blanking on which one. My memory wants to say left fork. Maybe someone else can confirm this? I've never been there in early april, but I would imagine it would be a great time of year. Shouldn't be any shortage of people climbing if you're looking to meet people there.

Overall I'd say its not ideal, but possible. If you don't mind walking and/or hitching, it would be very doable. Joe's is one of my favorite places to boulder, and in my opinion once you're there the climbing would be worth any inconveniences. Hope this helps, let me know if I can help you out any other way. Three weeks in Joe's sounds like a rad trip!