Here is the full list of all 19 Haven Park achievements.
Find and fly with the hot air balloon!
Finish all the quests
Light 5 firefly lanterns
Spend a week in the park
Use the cannon in Old Castle and become rocketman!
Jump on a swing
Swim to the north-most part of the sea
Play the guitar
Unlock all skills
Find and open 20 crates!
Reach level 10
Repair 50% of all broken things in the park
Trade resources at a marketplace
Build a ferris wheel in one of the camps
Find Dr. Wolf's practice
Climb the bow of the shipwreck
Pew 200 times
Finish the campers' wishlist in one camp
Collect coins from a food vendor