Full Billow Achievement Guide
This achievement seems to be a little glitchy at the moment. The best way to do this is to play in either solo mode or with 2 people so you can use the little ship. Once you are on your ship, set off and play with the Sails for a bit until the wind is blowing in them. You’ll know this worked as a ‘woosh’ sound will play and the sales will change shape.
22/3 Update - If you aren’t earning achievements right now, it would seem that they aren’t unlocking atm. However, once back up they should unlock.