I took a little trip to the Sumida Aquarium at Tokyo Sky Tree for the very first time. It felt nice to get lost in the colored lights and blue, wavering water tanks for a while. I caught a glimpse of the penguins' feeding time, where the aquarium staff fed little whole mackerel to the birds one by one, and the entire flock zoomed around at top speed, flying through the water in frenzied excitement. Outside again, the sun was beginning to set and the tower itself tinted orange-bronze against the cloudless sky. Fairy lights were still sprinkled over the low trees at the entrance, adding a bit of warmth to the chilly night.