Quick answer
Players can obtain nautical charts to locate remote islands in Echoes of Teradea. Natsume confirms that the islands support treasure hunting and contain rare animals not found on the mainland.
Confirmed facts
- Nautical charts are required to locate remote islands.
- Remote islands contain treasure-hunting opportunities.
- Rare animals can be befriended on islands.
- Some island animals do not appear on the mainland.
- Chart sources, boat mechanics and island count remain unconfirmed.
What players should know
The confirmed island loop connects collection, animal companionship and exploration. A launch-quality chart page will need the exact chart source, required progression, destination, island resources and rare animal. Until those fields are known, this overview answers the system-level question without inventing an island directory.
Still to verify
- Where each nautical chart is obtained
- How the player travels to an island
- Number and names of remote islands
- Island-only treasures, resources and animals
Source policy
Checked July 18, 2026 against Natsume’s March 11 title announcement, June 18 trailer announcement and official store information where relevant. Unknown mechanics are excluded rather than inferred from earlier Harvest Moon games.