BYO Wine vs Wine package on Nieuw Statendam

[maria2015]

Can any one give me advice on where to purchase wine upon boarding a HAL cruise aboard the Nieuw Statendam Sept 2020 from Amsterdam

I am contemplating buying wine  before we embark and paying the $18 corkage

Is there a good wine shop close to port?

Perhaps like Barcelona there is a wine shop after you have passed thru check in and security?

I am thinking this  might be more economical than the wine packages offered on HAL?

 

Would appreciate any input 

many thanks