| Model | Iris 3.1 | |
| Given name | Sydney | |
| Manufacturer | Iris Catamarans, La Rochelle, France | |
| Length | 26.00 m | |
| Waterline length | 24.90 m | |
| Beam | 9.00 m | |
| Draught (approximate) | 1.00 m | |
| Dead weight | 18.1 t | |
| Number of passengers | 204 | |
| of which interior | 106 | |
| of which outside | 98 | |
| Operating speed | 16 knots | |
| Maximum speed | 18 knots |
Photos: © Iris Catamarans, La Rochelle, France; © Philipp Zanatta; © VierNullVier
