Okunoshima, district of Hiroshima is a Japanese island with a circumference of about two and a half miles. It hosts a hotel, a campsite and a Golf course. There is also a small Museum as a reminder of the production of chemical weapons and the tragedy of what happened on Okunoshima during the Second world war. None of these things had not attracted the recent surge of tourism.
The island became a tourist destination due to the population of semi-wild rabbits, who face not natural enemies.
It can be argued that rabbits are a kind of invasive species, but the rabbits were not the problem as it was on the Scottish island of Canna .
It is not surprising that rabbits have come to expect visitors to bring them food. Here is another fascinating video about the interaction of the rabbits with tourists.