I made this puzzle a couple of weeks after Logic Showcase 50 (and inspired by it). The well of Rail Pool variants is bottomless.
You can solve this one either by drawing L-shaped line segments or by drawing the borders of Sashigane-like L-shaped regions. This is why I used colours instead of regions for the clues, but maybe cages would’ve been the way to go.
Rules: Draw L-shaped paths through the centres of all cells.
Some coloured regions contain number clues. If a leg of an L visits any cells of a clued region, its length must match one of these numbers. Each number must correspond to at least one such leg.