AETHRA - IMO 9181481 -
| Name | : | AETHRA |
| Former names | : | Polar Prince (1999-2015) |
| IMO number | : | 9181481 |
| Type | : | construction support vessel for subsea operations |
| Built | : | 1999 |
| Length | : | 94,10 m |
| Beam | : | 22 m |
| Draught | : | 7,10 m |
| Speed | : | 11 knots / 13 knots max. |
| Accommodation | : | 4 x single suites, 2 x single cabins, 2 x double cabins, 15 x quad cabins / 50 special persons / total persons on board 87 |
| Owner/operator | : | Asso.subsea, Limassol - Cyprus |
| Flag | : | Cyprus |
| Port of registry | : | Limassol |
