Full list of all 42 Summer in Mara achievements worth 1,000 gamerscore. It takes around 25-30 hours to unlock all of the achievements on Xbox One.
All achievements
Achievements they've won
Achievements they've not won
Cook 10 dishes.
Meet Saimi.
Craft 10 objects.
Remember...
Wake up after the tutorial.
Collect 30 objects.
Collect 10 objects.
Carry 99 oranges in the backpack.
Unlock the mine.
Complete all the quests from Akaji.
Complete all the quests from Aquila.
Complete all the quests from Awan.
Complete all the quests from Brram.
Complete all the quests from Blu.
Complete all the quests from Caleb.
Complete all the quests from Litio.
Complete all the quests from Mayo.
Complete all the quests from Pilly, Milly & Tilly.
Complete all the quests from Ecco.
Complete all the quests from Mûn
Complete all the quests from Taima.
Complete all the quests from Rigatta.
Complete all the quests from Onzo.
Complete all the quests from Taka.
Complete all the quests from Noho.
Complete all the quests from Napopo.
Cook 30 dishes.
Craft 30 objects.
Use the recycle bin 100 times.
Sell objects for a total of 1000 coins.
Sell objects for a total of 2500 coins.
Get all the Koa's outfits.
Get all the Koa's backpacks.
Unlock all the crops on Home Island.
Get one farm animal of each type for your island.
Visit all the islands from Mara.
Meet Dunna.
Beat Ereti in a race.
Recover all the chrystalis from the Door.
Defeat the Elit.
Pay the mortgage on your boat.
Get the boat to max level.