20 days on a raft in the Pacific Ocean
The two were rescued by a Japanese ship after spending 20 days on a small life raft. The incident created major media coverage around the world.
IIRC the two survivors were painting on the foredeck and was blown overboard when the explosion occured. As luck would have it a paint raft was blow off with them. (Not a life raft) They survived on flying fish and rain water.
A full length documentary about the miraculouse survival (In Spanish):
https://www.youtube.com/watch?v=ASzp0w6MSv4
BTW; I believe the rule about haveing life rafts up foreward on ships of this type/size came from this incident.