Hi folks. I'm looking for a fair amount of advice with assorted questions. Thanks for any help.
This will be my first time coming to Yosemite. I will be in California from July 24-August 2 with no specific plans yet. Flying into SF, need to be near Taho for a wedding at the end. Have basic camping gear. Did a lot of Boy Scout stuff back in the day, but am a bit rusty. Gradually stocking up on gear but will definitely need to get more for this trip. Looking to spend somewhere between 2 and 5 nights somewhere in the park.
I don't have any reservations yet (car camping reservations filled up, trailhead stuff mostly filled on the "good" hikes). First question is about the logistics of the first-come-first-serve system for both car camping and backpacking. How does it work? Any suggestions? What does it take to get into a site or get a trail permit on site?
For drive up camping (if I can get a site), what are your thoughts on logistics of day hikes? Is there easy parking near the main trailheads for day hikes? Shuttle system? How crowded is it?
For backpacking, what are the logistics? I've picked up some from investigating the permit system. Are there actual campsites that are approved for sleeping in each night, or is it a wilderness free for all? I read something about the first night sometimes being at a specific location from the trailhead and after that you're on your own.
What's the water situation while backpacking? Obviously, it varies by trail. I know there's a lot of creeks and streams, but are they pretty much everywhere? Will a water filter and a couple nalgenes get you through?
Weather/temperature advice?
Thanks for any help or advice. I can only pick up so much information reading the park information and formal websites.

