Puzzletober 2024: Horizon

Even though I prefer to stay on land, the submerged land bridge revealing a path to another island entices me to explore east instead of south. Something shiny on the horizon catches my eye and motivates me to go the extra mile today.

Rules: 

Solve the left half as a Bosnian Road with a path instead of a loop and the right half as a Nurikabe with some clues missing.

The Bosnian road should start somewhere on the left edge and end next to the Nurikabe; the cell to the right of the endpoint will be part of the river, and there must be only one way to follow the river to the right edge.

Within both puzzles, every shaded square must be horizontally adjacent to at least one other shaded square.

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