The movement pattern I would use
Odesa works better as a center-first day than as scattered city movement.
- Start around Deribasivska, the opera side, or Potemkin Stairs.
- and short rides for wider jumps.
- Keep the seafront layer separate if timing or weather makes the center enough.
Odesa is not hard to move through when the route has a spine. The problem starts when the center, waterfront, market, and dinner are treated as equal pins to collect.
I would make the first plan simple: central walk, one view or stair-side anchor, then food or a ride that points naturally toward the evening base.