Toshimaen: Tokyo's Best Amusement Park?
This is a classic park, which doesn't really have a lot of super thrill rides, but there are tons of older "carnival" rides that make this place perfect for a date. Or just a fun day out with friends. With Fuji-Q a full day trip (2 hours away by bus) and even Yomiuriland a bit outside of town, Toshimaen may be the best park Tokyo's cities have to offer. And let me lament once again that this park could use one or two more fun, unique coasters and a few new thrilling flat rides. Many of the ones that exist came out of the 1970s or 1980s. It's fun, but I'm going to be honest - this park needs to modernize just a bit.
The park does an all you can eat and drink event for lunch and dinner in March and April to coincide with the cherry blossom season, and the lights will be back in 2014 from March 21 (yesterday) through April 6. Some sort of cosplay event goes on two or three weekends a month. One Sunday a month, there's a flea market (200 yen admission fee, which might include park admission).
Admission only is 1000 yen, and you can pay per ride. All-day ride passes are 4200 yen. The park usually opens at 10, closing as early as 4 on off-peak weekdays, staying open until as late as 9 PM during the peak cherry blossom season. Toshimaen is closed most Tuesdays and Wednesdays, except during peak seasons (cherry blossoms, Golden Week and other holidays, etc).
The train is the easiest access, via Toshimaen Station. The Oedo Subway Line (20 minutes from Shinjuku, trains every 4-6 minutes) is two minutes' walk from the park, with the Seibu Toshima (Ikebukuro) Line (14 minutes from Ikebukuro, direct trains about every 15 minutes) being right next to the gates.