Quick answer
Yes. Official feature text connects nautical charts with reaching remote islands that contain rare collectibles and animals.
Evidence checked
- Remote islands are part of the exploration loop.
- Nautical charts are the named discovery tool.
- The number of charts, islands, and exact acquisition steps are not published.
How to use this answer
Prelaunch guidance should focus on the expedition loop rather than inventing chart coordinates.
The answer is scoped to Harvest Moon: Echoes of Teradea and the public evidence available on 2026-07-29. It does not import schedules, values, controls, item data, or progression rules from an earlier Harvest Moon game.
What remains outside the evidence
The relationship between charts and islands is confirmed, but a walkthrough needs real map locations and tested requirements.
If Natsume, a verified platform storefront, or reproducible launch-day testing supplies the missing field, this page should be updated with the exact source and review date rather than silently replacing the earlier status.
Evidence source
Primary source: Natsume title announcement. Independently summarized and checked on 2026-07-29.