Pourquoi Pas ? is a research vessel built in Saint-Nazaire, France by Alstom Marine for IFREMER and the French Navy and primarily used by Service hydrographique et océanographique de la Marine (SHOM). Pourquoi Pas ? was ordered in December 2002 and completed in July 2005. The 66 million euro cost was financed by IFREMER (55%) and the French Navy (45%).