It's no secret that spending a few hours surrounded by greenery can increase your energy levels. If wandering around town has worn you out, Hongo Kyusuijo Park is a perfect place to relax and recharge your batteries.
When you've finished up at this recreation and green space in Bunkyo, why not make your way to Tokyo Skytree, Tokyo Tower, and Tokyo Imperial Palace? They're not too far from Hongo Kyusuijo Park and also a favorite with travelers.