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Tap a tile to rotate it clockwise by 90°. Join the waterways from your boat to the next numbered stop, then tap Set sail. Collect each marked item in order before heading to the home bridge. The boat pauses at stops while you reshape the next part of the river.

The route must connect at both edges of every tile and lead to the next required stop. Your boat keeps its arrival direction and cannot simply turn around. A closed sluice blocks the channel until you reach its matching lettered switch. A route can also be rejected if it leaves no way to finish the remaining journey. Try approaching the stop from another direction, use Undo, or ask for a step hint.

Solve puzzle step shows a route and the turns needed to reach the next goal. It does not turn the tiles for you. The overlay disappears when you reach that goal. A successful hint uses one credit; ad-free owners have unlimited hints.

Choose Watch ad · +1 credit when it is offered. A credit is granted when the ad provider confirms that the reward was earned; closing an ad early does not earn one. Credits are saved on your device and synced through iCloud when available. If an ad is unavailable, you can keep playing and try again later.

The one-time Ad-free + unlimited hints purchase removes both between-level ads and rewarded-ad offers, and gives you unlimited puzzle-step hints. It is not a subscription.

Open the ad-free page from the main menu and tap Restore purchases. Use the same Apple Account you used for the original purchase. This restores your ad-free upgrade. Completed levels and earned hint credits sync separately through iCloud; Restore purchases does not trigger a game-progress restore.

The start bridge marks where your boat enters the board, and the exit bridge marks home. Stone islands cannot rotate. Some later levels fix additional tiles after a stop; a lock and corner clasps show which waterways are held in place. Waves can also change tile rotations.

There are 48 levels across six chapters. Complete each journey to unlock the next one; completed levels can be replayed. The 24 new sluice levels begin at level 25, after the first three chapters.

Reach a numbered switch stop to change the sluices with the same letter. A closed gate blocks the boat. Later switches may close an earlier gate while opening another, so check the Open/Closed indicators and plan the next stretch. Undo restores the previous gate states, and hints include sluices in their route.

The app keeps a local save and automatically syncs completed levels, best move counts, and hint credits through iCloud on devices signed in to the same iCloud account. No separate game account is needed. Your unfinished board, active hint overlay, and preferences stay on the device.

Existing progress and unused credits are carried forward when you update. Synced completions are combined, and the best move count is kept. Deleting the app can remove local-only data; synced data may remain in iCloud and become available again after reinstalling.

Check that both devices use the same iCloud account and have an internet connection. Open the app on both devices and allow time for iCloud to deliver changes. The app checks for updates when it opens and when you return to it. Apple’s sync is asynchronous, so updates may not appear immediately.

You can keep playing offline. Completed levels and credit changes merge when iCloud becomes available again. Restore purchases is for the ad-free upgrade and does not sync progress. If the issue continues, contact support with your app version and device details.

Each device may still show the last synced balance. If both spend the same last credit before reconnecting, both spends are retained when they sync. The visible balance stays at zero, and newly earned credits first cover that difference. Let both devices sync before switching between them if you want an up-to-date balance.

Use the globe on the main menu to change the app language. Use the speaker button to turn the soundscape and effects on or off. The game also respects your iPhone’s Silent Mode.

Where required by the consent provider, Privacy choices is available on the main menu. Open it to review or change your choices. See the Privacy Policy for more information.

Apple handles App Store refunds. Visit reportaproblem.apple.com and sign in with the Apple Account used for the purchase.