泊まった民宿（マリウド）主催のシュノーケリングツアーで奥西表の網取湾へ再訪。
船から見た西表島の南西部も絶景だが、潜ってみると異世界が広がる。地球と思えない色と形状の枝サンゴとテーブルサンゴが広がり、魚はもちろん、アオウミガメもいたりする。深いところにはサメが海底をうろうろする影も・・・（目撃の時点にすでにバッテリー切れになったのでサメの映像はない）。
残念ながら網取湾のサンゴたちは白化がすでに深刻だが、今後は気候変動に伴う水温上昇が脅威となる見込みだ。この美しい景色はいつまで見られるだろうか。
A snorkeling tour arranged by my lodging to Amitori Bay, just off southeast Iriomote but only accessible by boat. The scenery of the south-western side of Iriomote Island is beautiful in itself, but take a dive and it’s a different world entirely. Corals of colours and shapes as if on another planet, plus fish and the occasional sea turtle. (As well as the shape of a shark in the deep, but unfortunately my batteries were already dead by then.)
Apparently the corals at Amitori Bay almost completely died a couple of years back, due to a lack of typhoons coming to stir up cold water. They are still very threatened by the rising sea temperatures accompanying climate change, making it highly uncertain how much longer this stunning seascape will survive.