Senzoku Pond (洗足池, senzokuike) was founded around Edo period. It is one of the great Hanami spots in Tokyo. There are about 200 sakura are planted. There is boat pier so you can enjoy boat riding. In the spring, many fair stalls are opened, so you can enjoy great Hanami even without bringing any food.
There are restaurant. No parking.
0. at Tokyo Station
1. use JR KeihinTohoku line to Gotanda (15 min.)
2. use Tokyu Ikegami line to Senzokuike (9 min.)
3. walk North (2 min.)