Stayed in onsen ryokan in Kii Katsuura. On next morning, drove along Wakayama coastline westward to Shirahama.
Coastline from Kii Katsuura to Kushimoto
Stopped by Hashigui-iwa Rock prior to Kushimoto. Reached the southernmost tip in Honshu again.
Visited Sandanbeki, the white sandy beach and Engetsu Island again before checking in luxurious onsen hotel.
Returned car in Shirahama (without drop-off fee) and took JR Kuroshio express train back to Osaka/Tennoji in about 2 hours.
==> Osaka/Kyoto ==>