My recommendation of Ginza is to walk the main street during daytime. Due to the reflection of light, you can take good photos there.
A Picnic in Tokyo: A Guide to Yoyogi Park
You can spend from 30 mins to 2 hours at Yoyogi Park and enjoy various kinds of flowers in Spring and Summer.
The 5 Best Curry in Tokyo
Japanese Curry is my favorite summer foods. It was introduced to Japan in the 19th century. This is my most favorite curry shop list.