Peshi Misaki Observatory is just one of the landmarks located 0.7 mi (1.1 km) from central Rishifuji, so you might want to stop by for a few pics during your trip.
Rishiricho Museum is 6.6 mi (10.5 km) from central Rishiri, why not stop by during your stay. If you want to experience more of the culture Rishiri has to offer, head to Rishiri-Rebun-Sarobetsu National Park and Mount Rishiri.