What do you say to taking a walk by the seaside?

What do you say to taking a walk by the seaside? 

 "산책하는것에 뭐라 하실건가요?" --> "해안을 산책하지않겠습니까?" 

 = What do you think about?" 

ex) A: What do you say we put some skin in the game?

      B; we come back and beat you, you cough up something good.

      A; you're on.

*cough up : 마지못해 토해내다. 

                        to pay for something or give somebody  money       unwillingly                        to admit   something  or give somebody  information  unwillingly                       ex) you owe me $20. come on, cough up!                             Come on, cough up, where have you been?