Location: Nakanoshima Park (Rose Garden)
May is the month when roses bloom in most parts of Japan. I have visited Nakanoshima Park (Rose Garden). Coming from Sakaisuji line, drop off at Kitahama station and get off Naniwabashi exit, it is surprising to see the garden in the middle of the river and cityscape.
Tip: Try to visit earlier of the morning or very late in the afternoon. You don’t want to walk along the park with a very hot 26 degrees Celsius.