Conversation so far:
What is the organization GERS?
Cousteau and Tailliez showed Épaves to Admiral Lemonnier, who gave them the responsibility of setting up the Groupement de Recherches Sous-marines. Later it became the GERS.
What did the GERS do?
The GERS small team undertook the exploration of the Roman wreck of Mahdia.

Question: Are there any other interesting aspects about this article?
Self-contained rewrite: Are there any other interesting aspects about the Jacques Cousteau article besides the GERS small team undertaking the exploration of the Roman wreck of Mahdia?