Tidelight Atoll is the last island in the V4 route. The path runs from Lagoon Dock to the Glass-Shell Bed, Mangrove Gate, Seagrass Window, Tide Lookout, and Storm Wrack Line. The water is calm. The homework is musical.
A scanner shows a color. Find the shell with that color, jump to it, and stomp the note. The lessons grow from short patterns into a five-note song while geysers make increasingly direct suggestions about where not to stand.
The route to Bellfin
Collect twelve coins across three lessons. Watch each whole sequence before answering. In the guardian arena, move away from the glowing geyser warnings, then play the shells in order.
The songs are cyan, gold, magenta. Then gold, cyan, magenta, gold. The final song is magenta, gold, cyan, magenta, cyan. A wrong note restarts the current song, not your whole voyage.
Who lives here?
Mangrove Fiddlers patrol sideways through the roots. Tideglass Skimmers loop across the water. Both move away when the robot enters their reaction range, which is sensible behavior for anything living under a giant metal boot.
How Tidelight Atoll works
The island has six landmarks, four saved ecology readings, two fauna species, and three authored phenomenon reports. The saved values are salinity balance, lagoon clarity, mangrove cover, and fish nursery condition.
The four readings can change and recover toward defaults after elapsed days. They help select reports in the interface. They do not animate the lagoon scene or control fauna behavior.
One 10 Hz worker updates the Mangrove Fiddler’s sideways patrol and the Tideglass Skimmer’s water loop while Tidelight is active.
The route contains six route coins and six lesson coins. Bellfin’s arena has twelve geyser vents. Later phases use more vents, shorter warnings, and positions that lead the player’s movement.
Cross-island report selection currently checks average ecology readings rather than the named migration or current axis. That remains an implementation gap.