2026 Full-Day Course: Starry Skies at Onidake Observatory, Goto Islands and Fukue Island

Onidake Observatory (鬼岳天文台) in Goto City, Nagasaki Prefecture, is a public observatory equipped with a 60cm Newtonian reflecting telescope. Viewing sessions require a reservation by 16:00 the day before, and participants gather at the observatory at 20:00 on the day. Admission is 300 yen for adults, 220 yen for high school students, and 150 yen for elementary/junior high school students (including telescope viewing and commentary). Closed December 29 to January 3, and cancelled in bad weather. The surrounding area is dotted with sights representative of Fukue Island, including Fukue Castle (Ishida Castle), Osezaki Lighthouse, and Onidake hill, which can be enjoyed together with a daytime tour of the island.