The People
Behind Base One
Two decades of cave diving experience, exploration, and education — distilled into one place.
Co-Founder · SUEX
Alessandro Fenu
Alessandro has been diving since 1981. In the early 90s he located and explored wrecks in the North of Sardinia, and in 2000 took part in the Pag Island Wreck project, leading to the discovery of six deep wrecks. He joined the WKPP in 2007, and from 2011 onwards has led the FLD Team, comprising 25 active cave divers running exploration and mapping projects across the Northern Italian caves.
In 1999 he co-founded Suex with Marco Segatto, with the goal of manufacturing high-performance diving vehicles for professionals, explorers, and military applications. Beyond his work as an underwater explorer, he trains military Spec Ops on Suex DPV use and management.
GUE Instructor · Phreatic · Explorer
Andrea Marassich
A diving educator by profession and a cave diver by passion, Andrea spends most of the year in Sardinia teaching cave diving and running scientific, documentation, and exploration projects in the underwater caves of the Gulf of Orosei. He regularly dives the caves of Mexico, Florida, and France, running similar activities with different groups and pursuing different goals.
Involved in multiple exploration, conservation, and research projects across Italy, France, Bosnia and Herzegovina, Slovenia, Portugal, Spain, Mexico, and Florida, he has built a broad network of researchers, divers, and media experts. For the past six years he has led the activities of Phreatic, focused on data collection, cave survey, cartography, and 3D modelling using photogrammetry.
