Clacton Pier
| Year | Orca | In | Out |
| 1978 | Hoi Wai | August | - |
| 1979 | Hoi Wai | - | - |
| 1980 | Hoi Wai | - | January 1 (to Windsor Safari) |
| 1981 | Nemo Neptune OC-81-1 |
November November November |
- - d. December |
| 1982 | Nemo Neptune |
- - |
- - |
| 1983 | Nemo Neptune |
- - |
- d. June |
| 1984 | Nemo | - |
June (to Windsor Safari) |