Kaikyokan Aquarium in Shimonoseki — What Most Visitors Miss at Japan’s Pufferfish Capital

A diver inside the Kaikyokan Aquarium Kanmon Strait tank feeding a stingray while visitors watch from behind the glass

Scroll through reviews of Kaikyokan Aquarium in Shimonoseki, and a pattern shows up fast: “small,” “pricey for what it is,” “not as impressive as Osaka or Okinawa.” I have visited this aquarium multiple times over the years, and after its eight-month renovation wrapped up in August 2025, those lukewarm takes made me curious enough to … Read more