Before you go
Prerequisites
- Complete enough of the family-crest story to start Dinner Party.
- Unlock Cat Form by completing Dinner Party.
- Keep the form wheel accessible before entering Howling Marshes.
Exact route
Step by step
- 1
Meet Ludo in Howling Marshes during A Curious Passage and use the cat-sized passage.
- 2
Meet Tae in Luna Bay, then report back to Ludo.
- 3
Continue Mysterious Bay: deliver Samael's letter to Kim and get the witches' help with the waterfall tree. This direction follows the quest objectives; the Aqua overview describes a letter in the opposite direction.
- 4
For normal walkway access, bring Ludo the requested Margherita Pizza and attend the Luna Bay party. This is a separate access upgrade, not a documented Aqua prerequisite.
- 5
Start Kim's Mermaid's Wish: ask Yabbis about growing legs, find a special shell in Cave of Echoes and another in Misty Shores, grind them in the Enchanted Mortar, and bring the powder to Luna Bay.
When it does not work
Common blockers
The marsh passage will not let me through.
Confirm Dinner Party is complete and switch into Cat Form before interacting with the passage.
I can enter only in Cat Form.
That is the intended first stage. Continue Mysterious Bay and Ludo's Plan to make access permanent.
A dive pool has no prompt.
Confirm Aqua Form is active, free at least one inventory slot, and approach the ripple from another angle.
Fast answers
FAQ
Can I reach Luna Bay without Cat Form?
Not on the first story visit. A Curious Passage uses Cat Form; Ludo's Plan later opens ordinary access.
Which quest unlocks Aqua Form?
Mermaid's Wish unlocks Aqua Form after the shell and enchanted-mortar objectives.
Do I need Ludo's Plan before Aqua Form?
The checked Mermaid's Wish page lists A Curious Passage and The Mysterious Bay, not Ludo's Plan. Ludo's Plan opens the walkway for any form; keep that access upgrade separate from the documented Aqua prerequisites.