Here is the full list of all 9 Point of Mew achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Find all the boat figureheads.
Get out, have fun and make a new friend.
Not even the flying creatures are safe.
Find all treats and "deal" with them.
Find all the boat bases.
Find all the boat captains.
Find the legally distinct big hair creature.
Find all the boat sails.
Peace was never an option.