Located on a hill to the south of the Kiritappu Marsh, the Biwase Observatory offers a 360-degree view.
Looking forward, a panoramic view of the Biwase River meandering through the vast Kiritappu Marshland unfolds, and looking back, a wild view of the Pacific Ocean awaits, which is rated as an international class sightseeing spot.
Looking back, a rugged view of the Pacific Ocean awaits, and it is rated as an international-class sightseeing spot. This window rock is one of the oddly shaped rocks in Hamanaka Town.
Until some years ago, it was shaped like a pair of glasses with two windows, but one side collapsed due to the big earthquakes in 1993 and 1994.