PASSING ZONES The cannel has been designed and built to be one-way channel. There are two Passing Zone which are dredged and marked by buoys. Between Km 57.5 and Km 60.5, width between side slopes: 188 m. Between Km 88.1 and Km 91.1, width between side slopes: 178 m Minimum maintained depth: 10.36 metres (34 feet). For further information, see publication of Martín García Channels Regulations (REMAGA), Chapter II, Articles 2.11 and 2.12.