I suggest you do deep research into places to visit. That's just a route around the island missing almost everything. Aso is the second largest caldera on earth and has 5 mountains within its crater. If you missed that you can guess you missed most things. Spend hours on google maps looking at the photos embedded. Check YouTube though I would not limit it to people riding bikes. Check my own channel called waddo if you want. We are going there again this winter. I'd so half the distance and double the visiting.