Sometimes written Gurin Gurin, Grin Grin Park opened in 2005 on Island City, the artificial island in Hakata bay.
A series of connected forms, organically shaped, seem to emerge from the ground.
The structures are concrete and steel covered in glass and in places vegetation.
The spaces inside and under the structures contain plants of the area.
Grin Grin was designed by Toyo Ito who is often referred to as a visionary architect. Much is made of Grin Grin's supposed "eco" qualities, but as it is on an artificial island whose construction destroyed bio-diverse wetlands, I find it hard to see.
walkways snake up and over the structures.
entrance into the greenhouses is only 100 yen.
It was a few years ago when I visited, and maybe the growth of the vegetation has improved its appearance....