There are no bridges and the island is not connected to the shore in any way, because Horaijima is inaccessible to mortals. However, if the island is large enough, flora symbolizing longevity may be planted, like the small pine in this photo taken inside Rikugi-en, in Bunkyo, Tokyo.
EXIF info:
Nikon Df
Lens: VR 28-300mm F/3.5-5.6G
Focal Length: 85mm
Aperture: F/6.3
Shutter Speed: 1/2500s
ISO Sensitivity: ISO 500