Before revision: The Acali was a raft which was used in the Acali Expedition or Acali Experiment.Storyville: The Raft, BBC4, 2 Jun 2019 It has also been nicknamed the Sex Raft.
After revision: The Acali Expedition (also Acali Experiment.Storyville: The Raft, BBC4, 2 Jun 2019 and the Sex Raft.