There are two organizations noted in that article which most here have never heard of, and hopefully will never need, CROSS and SNSM.

CROSS, or more correctly CROSS AG, is the Centre Régionale Opérationnel de Surveillance et Sauvetage aux Antilles et Guyane, the Regional Surveillance and Sea Rescue Operation for the Antilles and Guyana. Based out of Guyana, CROSS AG coordinates sea rescue for the Caribbean between Anguilla and Guyana.

SNSM, Société Nationale de Sauvetage en Mer, National Sea Rescue Society in English, is an all-volunteer organization which performs sea rescues all over France and its overseas territories. There are SNSM groups in both St Martin and St Barth, both of which operate specialized sea rescue boats.