Related Clues:
- Passages going on board
- They have a tendency to be narrow in the ship
- The methods criminals have to get to the ships
- Ship boarders' passages
- Narrow ship passages
- See 15
- See 2
- See 24
- Feature on board in the Channel
- Narrow channels
- In dire --
- Movable bridges for boarding ships
- ... of Magellan, Hormuz
- Some shipping routes
- Bridges for boarding ships