RIO - IMO 8613047 -
| Name | : | RIO |
| Former names | : | Opale (1987-2004) |
| IMO number | : | 8613047 |
| Type | : | Trailing suction hopper dredger (sleephopperzuiger) |
| Built | : | 1987 / rebuilding 2005 |
| Length | : | 82,35 m |
| Beam | : | 16,32 m |
| Draught | : | 5,85 m |
| Speed | : | 10 knots |
| Capacity | : | 2430 m3 |
| Dredging depth | : | 35 m (max.) |
| Owner | : | S.E.A.M. Oosterlee B.V., Breskens - The Netherlands (pict.1-6) / Group Decloedt n.v., Brussel - Belgium (pict.7-9) |
| Flag | : | The Netherlands |
| Port of registry | : | Breskens |
