narrow wood phuoc kieng or cao go phuoc kieng bridge over cai river at nha trang, khanh hoa province, vietnam.

adventure architecture asia asian autumn background beautiful beauty bike blue bridge brown cloud countryside environment european footbridge forest green high hike holiday lake landscape light motorcyclists mountain natural nature nobody old outdoor park plant river rough rural scene scenery scenic sea sky structure summer thailand tourism trail tranquil travel tree vacation valley vertical vietnam vietnamese view vintage walk walkway water white wood wooden