What is a good place for an American to learn Zohar in person (anywhere internationally)? (This question is for a friend who is much more learned than I am).
There are several good and renowned Kabbalistic Yeshivot in Jerusalem. Many of those offer shiurim in Zohar(as well as other subjects) provided one is qualified for them.
Nahar Shalom offers two one hour shiurim each day, one under the Rosh Yeshiva Rav Benayahu Shmueli and one under Rav David HaKohen.