A giant Christmas tree is displayed floating on the sea in the red-brick warehouses (金森赤レンガ倉庫群) area during the festival each year. Lighting-up events with fireworks are held every night. This Christmas trees are presented by Halifax, Canada every year.
函館山 hakodate-yama, 334m
Offers spectacular views of the city of Hakodate in clear weather and offers, according to locals, one of the three best night views of not merely Japan but the entire world (the other claimants being Naples and Hong Kong). The busiest time is during sunset, so if you plan to take a sunset photograph, be ready to arrive early and claim your spot... and be prepared for a 40-minute waiting queue to catch the cable car back from the summit.
五稜郭
A star-shaped fort, a symbolic site to the city itself. Completed in 1864, this was Japan's first Western-style fortress and finished just in time for it to be occupied by the Ezo Republic as their headquarters. It never saw any action though, as the rebels surrendered peacefully. Most of the fort was consequently demolished and this is now a large park and popular cherry-blossom spot in spring. The fort also houses a small museum with exhibits on local history (rotating each year). (JR Goryōkaku station is not near to Goryōkaku. Tram or bus are recommended.)
五稜郭タワー
From the 90-meter viewing platform you can get a striking view of the star-shaped fort. Neat dioramas tell the story of the Enomoto and Ezo Republic (see sidebox), and the role of the fort in Hakodate's history; an English pamphlet is available. The views from Goryōkaku Tower is different on each season. In spring, you can enjoy seeing 1,600 cherry blossoms and the view from the tower is a best place to see them. However, it takes at least 3 hours to go up the tower in cherry blossom season because of the crowds. In summer, you can enjoy full green trees, and in fall you can enjoy the changing leaves. In winter, Goryōkaku is covered with snow and is illuminated at night.
元町
This is the historical district. One popular attraction is the Old Public Hall of Hakodate Ward (旧函館区公会堂 Kyū-hakodateku-kōkai-dō), a European-style building which housed Hakodate's government in the early 1900s. The various churches and consulates in the area, dating to the early days of foreign trade with Japan, are also frequented by tourists. There is a pleasant walk up going from the Higashi Honganji Temple (東本願寺函館別院 higashi-honganji-hakodate-betsuin) all the way up to the Foreign Cemetery (外国人墓地 gaikokujin-bochi). On your way you will pass the Russian Orthodox Church, the Our Lady Star of the Sea Roman Catholic Church (worth a look inside; the door on the side of the main front door isn't locked, it's just heavy and visitors are welcome), the Episcopal Church as well as the old British Consulate, the Old Public Hall, the Old Russian Consulate, as well as other temples in the vicinity of the cemetery. There is also the Gokoku Shrine which houses the remains of the imperial dead following the Battle of Hakodate, as well as the remains of the Choshu rebels that died in the Satsuma Rebellion, although their memorials are not open to the public.
金森赤レンガ倉庫 Kanemori Akarenga Sōko
These warehouses built at the end of the Meiji era now house a variety of commercial facilities, as well as restaurants serving seafood. There is also the first concrete electricity pole of Japan located near there, which seems to attract the interest of Japanese tourists. A night view of Hakodate can be seen from The Blue Moon bay cruise, located at the vicinity of the red brick warehouses. The area is especially nice for a night time walk as the buildings are lit up and the area is very atmospheric, especially in winter.
函館市北方民族資料館
Worth a look to gain an understanding of the Ainu, the indigenous people of northern Japan. Ainu culture is rich and fascinating but has historically been forgotten in Japan. A fair number of signs and labels are translated to English and an English pamphlet is available.