underwater corridor,underwatercity

the green corridor
ip68 (silicone tube encapsulation) can be work underwater
(epoxy) fit on damp location (bathroom,kitchen and corridor)
瀑布,spahats creek falls斯巴哈特瀑布,清水湖露营区clearwater lake
"扇形城市"——卡尔斯鲁厄的有轨电车