The teamLab Acorn Forest is a small, outdoor exhibit in Higashi Tokorozawa Park in Saitama. It's a permanent installation of large silver "acorns", which resonate sounds through the woods, and light up in magical color at night. teamLab Acorn Forest is just across the road from Sakura Town and the Kadokawa Culture Museum. Tickets are -, depending on the day of the week and time of entry. Visiting at night is more expensive.