We were going to go just the two of us for our 10 year anniversary in 2020 but that obviously didn't happen. So we're planning to go for our 15 year anniversary and bringing the kids too. A big reason why we want to go is that we both served missions in Japan so we'll visit each of our missions (Sendai and Kobe) and some people. What I haven't decided yet though is if we want to go in the summer and hike Mt Fuji (something I REALLY want to do and barely missed out on last time we were there) or go for Hanami in the spring.