Yakushima + Kagoshima 2014. For our honeymoon, we went to Yakushima Island in Kagoshima Prefecture. Arriving by boat to Yakushima was like arriving to the island in Jurassic Park. The mountains rose straight from the water and were shrouded in fog. The flying fish soared alongside the boat for nearly a minute at a time. We went a week only soaking at onsens.