Oboke and Koboke
“Oboke Koboke” is an about 8km-long canyon, created over 200 million years by the rapids of the Yoshino River that passes through the Shikoku Mountains, and the area has beautiful sculpturesque landscapes.
The cliffs in the Oboke and Koboke gorge are seriously impressive! So much greenery and the sound of the river—it's super relaxing. Feels like it really refreshes your soul.
Osaka Tsuruhashi Market
The market consists of not one but six markets and a shopping district that still retains the retro atmosphere of the time immediately after Japan's war (World War II). The market boasts a total of about 800 stores, including barbecue restaurants, Korean food stores, and specialty stores selling dried foods, daily necessities, and fresh fish. It is also famous as a market where chefs have come to stock up for centuries.
The market is really clean and there's barely any fishy smell.
CUPNOODLES MUSEUM OSAKA IKEDA
At the CUPNOODLES MUSEUM in Ikeda City, Osaka Prefecture, the birthplace of instant ramen, 11 exhibits and attractions will delve into the appeal of instant ramen.
You get to make your own cup noodles here! If you don't understand something, there's staff who speak Chinese and can help you out.
Tower of Osaka Castle
Toyotomi Hideyoshi, who unified the country during the Azuchi-Momoyama period (1568-1600), began construction of the tower of Osaka Castle in 1583 and completed it in 1585. The castle was later destroyed during the Osaka Natsu no Jin（summer campaign of Osaka） in 1615, but was rebuilt by the Tokugawa Shogunate in 1626. However, the castle keep was destroyed by lightning in 1665. In 1931, the castle tower of the Toyotomi period was reconstructed with donations from Osaka citizens.
Just taking photos in the park outside is enough. Honestly, I wouldn't recommend going up to the main keep.
Tokyo National Museum
The Tokyo National Museum is the oldest institution of its kinds in Japan, founded in 1872. The museum is comprised of 6 exhibition buildings, which are Honkan (Japanese Gallery), Toyokan (Asian Gallery), the Gallery of Horyuji Treasures, Heiseikan: Japanese Archaeology and Special Exhibits, Hyokeikan, and Kuroda Memorial Hall.
The collection here is really extensive. It's definitely worth taking your time to explore everything.
Showa Kinen Park
Grassy fields and water fountains, sports courts, gardens of seasonal flowers and trees to enjoy and pond shore vegetation to be appreciated are dotted throughout this park, roughly the size of 40 Tokyo Domes.
The park is huge and there are always different events going on. The lake and garden design are beautiful. You should plan at least three hours to really enjoy it.
ENOSHIMA AQUARIUM
Facing Sagami Bay, this aquarium takes full advantage of its amazing location overlooking Mt. Fuji and Enoshima.
The aquarium is right by the sea, so you get amazing views of Sagami Bay and Enoshima. You can even see Mt. Fuji! The scenery is really lovely, and the dolphin show is a must-see.