For a captivating history lesson, check out the crumbling remnants of Ashigara Castle Ruins and imagine how it must have looked in its prime.
You'll be spoiled for sightseeing choice in Oyama. Ashigara Castle Ruins is an ideal place to begin here, but there are many other fine sights to experience. Gotemba Premium Outlets, Fuji Speedway, and Hakone Kowakien Yunessun are near the once-important structure and and will cap off your day nicely.