- Who
- Roger Chapman & Roger Mallinson
- Where
- Ireland ()
- When
The deepest underwater rescue ever achieved was that of Roger R. Chapman and Roger Mallinson from the Pisces III, in which they were trapped for 76 hours when it sank to 480 m (1,575 ft), 241 km (150 miles) south-east of Cork, Republic of Ireland on 29 August 1973. It was hauled to the surface on 1 September by the cable ship John Cabot, after work by Pisces V, Pisces II and the remote-control recovery vessel Curv (Controlled Underwater Recovery Vehicle).
