To improve traversal between the smaller splitter islands, we have begun establishing a series of directed air currents — stable upstreams intended to serve as fixed transit corridors across the Ancient Land.
Navigation along these routes is aided considerably by the Signal Blocks, which emit a strong enough light to remain visible at great distance, including low-visibility conditions such as overcast weather or night time. They function well as orientation markers.
Additional Signal Blocks are stored on an island beyond our current range. The air currents are not yet calibrated to support passage that far out.