Tomo Park, also known as Tomo Kōen, was designated as an official park of Hiroshima Prefecture in 1873 along with the famous Miyajima Island. Tomo Park was further recognized in 1925 as a National Site of Scenic Beauty, a designation meant to highlight and preserve locations of particular natural splendor and aesthetic value. Found within the park are the islands of Sensuijima, Bentenjima, and Kōgōjima. These islands can be seen from Fukuzen-ji Temple, a Buddhist temple housing a reception hall known as “Taichōrō.” The breathtaking view of these islands from Taichōrō was once praised as “the most scenic view in all of Japan” by an envoy visiting from the Korean peninsula in the early-modern era. Also found within Tomo Park is the famed Kannon-dō Hall at Abuto, a Buddhist temple hall perched atop a seaside cliff.

Sensuijima Island, which is found at the center of Tomo Park, features several trails and promenades from which visitors can enjoy the island’s coastline and lush interior. Numerous observation points are also found around the island, providing views of the Seto Inland Sea and Tomonoura. The island’s coastline promenade boasts glimpses of rock formations and strata from the Cretaceous period of the Mesozoic era—the era of the dinosaurs and a time in which the Japanese archipelago was still connected to the Eurasian continent. Several of these geological features are designated as Natural Monuments of Hiroshima Prefecture.