I'm planning to go to Israel for the first time, b"h, in just over a month. I'll be going on an organized trip and then I hope to stay until after tisha b'av. What halchot do I need to know about? (I know that there's kri'ah when seeing the kotel for the first time. I know that there's something about being careful with truman and maser, but I'm unclear of the specifics.
What halachot does an American traveling to Israel have to be made aware of?