Here is the full list of all 36 Travellers Rest achievements.
Get your tavern to comfort level 200.
Hire an employee of each type.
Get 50 simultaneous customers in your tavern.
Overnight 10 times.
Earn 800 gold coins.
Reach the maximum training level of a bird for the first time.
Rent 100 rooms.
Serve 1000 meat dishes.
Incubate an egg until it hatches.
Harvest 50 corn plants.
Serve 1000 veggie dishes.
Brew 100 kegs of beer.
Deliver 20 orders.
Earn 100 gold coins.
Harvest 300 crops.
Kick out 30 angry customers.
Clean 200 tables.
Reach the highest level of affinity with your cat.
Craft 50 items.
Cut 1000 weeds.
Obtain your first fishing rod.
Catch 10 different types of fish.
Catch 25 different types of fish.
Pick up 20 pieces of junk.
Pick up 60 pieces of junk.
Catch a minimum-sized fish.
Catch a maximum-sized fish.
Obtain a fishtank.
Obtain five different fishtanks.
Serve 1000 seafood dishes.
Light the fire in the Tavern Keeper King's temple.
Spend 50 Recipe Fragments at the temple.
Plant 50 trees.
Dig 50 holes.
Purchase 50 decorations from Wilson.
Catch 200 fish.