Hard walk (4)
I believe the answer is:
trek
(Other definitions for trek that I've seen before include "Long walk, expedition" , "Long hard journey on foot" , "A long arduous march" , "Long difficult walk" , "Long and difficult journey" .)
I believe the answer is:
trek
(Other definitions for trek that I've seen before include "Long walk, expedition" , "Long hard journey on foot" , "A long arduous march" , "Long difficult walk" , "Long and difficult journey" .)