Is there a way to contact someone about questions for a tent site? Would like to know if check in times (i.e. 3pm)are the time you have to be there, or if that is the earliest you can have access to the site. Do you have to have a physical check in?

That's the earliest you can have access. There's a place for self check in or you can go up to the office the next morning even if you arrive late and they are closed. I forget what time the office closes

That number doesn't work anymore. I was able to call the Marina and ask questions through them.

This is the number that comes up for the park 19373623822