A worked route / spoilers ahead
A watch-by-watch
way home.
This route lights Copper, Bell and Reed before turning back through Market. One recharge is the difference between being stranded and finishing.

Setup / before watch 1
The starting position
Ready at Depot.
Five energy in the boat. All three lamps are waiting. Read each action before revealing the next one.
- Dock
- Depot
- Energy
- 5 / 5
- Lit lamps
- 0 / 3
- Depot / start
- Watch 1 / not revealed
- Watch 2 / not revealed
- Watch 3 / not revealed
- Watch 4 / not revealed
- Watch 5 / not revealed
- Watch 6 / not revealed
Why this works
Five crossings.
Seven energy.
One recharge.
The route spends 2 + 1 + 2 + 1 + 1 = 7 energy. You start with 5 and recharge for 2 at Reed Lantern. Five sailing actions plus one recharge fit exactly into six watches.
This route does not use the tidal bridge. Try another route in the game and compare where its energy and watch budget go.
Try it with the boat ↗