Nauru.
(It's pronounced as Na-u-ru, btw)
Nauru is an Island in Oceania and the third smallest country in the world, with an area of 21 square kilometres. There are 12.000 people living there, 94% of them are overweight, 70% obese, so if you're one of the 200 annual tourists, you're probably the healthiest. The entire country has exactly one club, if you're banned from entering it, you have to swim 700km to the next one, have fun.
Nauru has one actual street that goes around the entire country. It takes 25 minutes to drive the entire length. If you want to go on a holiday there, you can live in the only hotel this place has. Technically, there are like 6, but you can only book a room in one, lol.
Nauru has a lot of beaches, but because of the ocean current, you can't swim there.
The main attraction of this country is a Phosphate loading facility, very pretty. Alternative, the country also has like 5 churches.
In general, 80% of this island is a Phosphate mining plant. There are like 3 Trees on there. And 3 random stones in the ocean.
And maybe you're now thinking "perfect for being alone" i mean yeah, but the internet is quite terrible there too, so have fun doing literally nothing.