2 are under the sea, and one is on the sky :)
the double-heart shape fish trap is the most beautiful
landscape/construction of Penghu county, Taiwan. When
the sea level is high, fish will swim into the fish trap that
was mostly constructed by Basalt. As the sea level goes
down, the design of trap would keep fish trapped in
the fish trap. (bcz of the deeper inside and shallower
entrance) There are many fish traps like this around
the Penghu county, but double-heart shape fish trap
definitely is the most famous/beautiful one among them.
I took this picture before sunrice, so I can make a long exposure,
make the waves and sea looks "soft".
To see more photo of the double heart shape fish trap,
u can click this link.