||My entire family is going to Israel for Pesach. Shouldn't we keep one day of Yom Tov instead of two? According to Rav Kook, zt"l, when an Israeli leaves Israel with his/her entire family, even with the intent to return to Israel, the family must keep two days of Yom Tov in chutz la'aretz. Shouldn't the same reasoning apply if the entire family goes to Israel, that they keep only one day? If you say we must keep two days, would it make a difference if we owned property in Israel?
In the time of the beit hamikdash, when people made aliyat haregel, did they also keep two days if they were coming from outside Eretz Yisrael?
I would really appreciate your clarification on this matter.