Wishing Wells provide Fast Travel teleportation to each Biome using the Map. The Player does not have to navigate to the Wishing Well and interact with it in order to utilize Fast Travel capabilities; they can also access the Fast Travel Controls to easily teleport to a repaired Wishing Well from any location in the Valley.
The Plaza Wishing Well is unlocked automatically, and the Peaceful Meadow Wishing Well is unlocked during the early-game quest Friendship Is Everything. All other Wishing Wells can be unlocked by paying Star Coins to repair them.
As the player completes achievements in the Dreamlight Menu, the appearance of the Plaza Wishing Well evolves to reflect the player's progress. Initially the Wishing Well looks dingy and overgrown with plants, but by the final stage a flourishing tree wraps around the sparkling Well.
This evolving appearance only applies to the main Plaza Wishing Well; other Biome Wishing Wells have a standard appearance.
Unlock Dialogue
Unlock
Repairing this Well means you can quickly travel here from anywhere in the Valley. That sounds like a quality deal to me.
→ Let's fix the Well. (Use 10000 )
The Well is fixed! Smartly done, PLAYER.
[Insufficient funds] Och! You don't have enough Star Coins for this Well! Come back when you have the funds, PLAYER.
→ Perhaps some other time.
This Well won't repair itself, you know. Come back when you're serious about investing in the Valley.
Plaza
1,000
Peaceful Meadow
Friendship Is Everything 
Dazzle Beach
1,000
Forest of Valor
Glade of Trust
Sunlit Plateau
Frosted Heights
Forgotten Lands
The Docks
The Courtyard
The Plains
The Borderlands
The Grasslands
The Lagoon