Yet again, I've gone a long time (this time, a full month!) since posting. As many of my students say, it's difficult. I should get into a writing routine again, like I had in California.
To give you an idea of how far behind I am, these pictures were taken in mid-February. Yup.
Kasai Rinkai Park is free and open every day. There is an aquarium, food services, the Ferris wheel, and a couple other small attractions which have additional charges, and these close on some Wednesdays. I don't think swimming is allowed (I wouldn't recommend it - there are non-stinging but still unnerving jellyfish in these waters) but you can go wading on the beach with your kids. I spent a few hours there exploring the park, but it could be just a nice place to stroll or relax after a day at Disney. The park can get very crowded on holidays and Sundays, especially in the afternoons. Also note that, like many other places in Japan, toilet paper may not be available in the restroom. Please plan ahead and bring some or ask at the service center.