So they built a new bridge bridging the Tateno Gap. Looks good to go to me, but it won’t open until March. If you’re in that neck of the caldera, though, I suggest you park and walk down to the river, where there exists a most excellent example of basaltic columns, which occur when magma cools and does not shrink in the horizontal direction but instead results in the formation of columns. Other sites exist in Kyushu displaying this phenomenon, but this is closest to home. - William