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.
Shirahama
Visited Sandanbeki, the white sandy beach and Engetsu Island again before checking in luxurious onsen hotel.
==> Luxurious onsen hotel stay
Returned car in Shirahama (without drop-off fee) and took JR Kuroshio express train back to Osaka/Tennoji in about 2 hours.
==> Osaka/Kyoto ==>