Tropical Dream Center is part of Ocean Expo Park in Motobu, Okinawa. One of the top attractions, the Churaumi Aquarium is close by. It’s walkable distance so I recommend going if you are already in this area. I have never seen so many orchids in my entire life all housed in the same space. I have only included a few types of orchids and the website lists more than 2000. There are also fruit trees inside.
Enjoy Japanese sweets after you view the greenhouses.