This channel was built to take in seawater for the tidal pond. The remains of the channel's stone walls and steel sluice gate can still be seen. At present, the pond has been cut off from the sea and is now a freshwater pond.
Kushakudai is with a height of and commands the scenery of the inner sea. One record of individual that records that the Shogun watched from this hill. But when the Meiji Emperor took the seat on a hill of this garden, he took his seats near this spot. The Emperor looked out down down to the ocean looking down the scene.
West Lake (Japanese: Seiko) is a lake in the Chinese city of Hangzhou in Zhejiang Province, famed for its scenic beauty. The poet Su Dongpo (Su Shi) had a long causeway built in the lake during the Northern Song Dynasty. This embankment is a replication of that causeway. Similar structures can also be seen in Koishikawa Korakuen Garden and in Hiroshima's Shukkei-en Garden.
The arrangement of stones on this island represents Mt. Hōrai (Chinese: Mt. Penglai), a sacred mountain in Chinese mythology that is said to be the land where the immortals live, and where there is no death or old age.
