IDUN R - IMO 8325250- 
| Name | : | IDUN R |
| Former names | : | UKD Dolphin (1997-2010), Welsch Dolphin (1994-1997), Humber Dolphin (1984-1994) |
| IMO number | : | 8325250 |
| Type | : | trailing suction hopper dredger |
| Built | : | 1984 / re-built in 2011 |
| Length | : | 78,95 m |
| Beam | : | 14 m |
| Draught | : | 4,5 m (loaded) |
| Speed | : | 10 knots empty / 9 knots loaded |
| Dredging depth | : | 25 m |
| Hopper capacity | : | 2189 m3 |
| Owner/manager | : | Rohde Nielsen, Copenhagen - Denmark |
| Flag | : | The Netherlands |
| Port of registry | : | Dordrecht |
