1.Shi Cheng (Lion City) at Qiandao Lake in China
https://www.youtube.com/watch?v=js_vf...

2. Green lake Austria
https://www.youtube.com/watch?v=QZ5NF...

3. Yonaguni-jima, Japan
https://www.youtube.com/watch?v=_ep9P...

4. Soviet Prison, Rummu
https://www.youtube.com/watch?v=fiJ8N...

5. Silfra, Iceland
https://www.youtube.com/watch?v=JKcdJ...