boardwalk
an elevated footpath, walkway, or causeway built with wooden planks that enables pedestrians to cross wet, fragile, or marshy land
en-US/ˈbɔɹdˌwɔk/
en-GB/ˈbɔːdwɔːk/
an elevated footpath, walkway, or causeway built with wooden planks that enables pedestrians to cross wet, fragile, or marshy land