GUE Instructor resumé

View Scheduled Classes

Classes I teach:
Discover Diving
Recreational Supervised Diver
Recreational Diver 1 - Nitrox
Recreational Diver 2 - Triox
Recreational Diver 3 - Trimix
GUE Fundamentals
Doubles Diver
Drysuit Diver
Navigation Primer
Rescue Primer
Triox Primer
DPV Diver 1
Documentation Diver
Technical Diver 1
Technical Diver 2
Technical Diver 3
CCR Diver 1
PSCR Diver
Recreational Dive Leader

Mario Arena

c, Croatia



  • 2009-present co-owner UnderWater Frontiers
  • 1991-2009 owner and operator North Eastern Divers
  • 1998-02 Libreria del Mare nautical bookshop, own
  • 1996-98 14° Est Technical Diving Center in Pula, CRO, founder and former owner

Diving Qualifications

  • Technical Instructor GUE
  • Hyperbaric Technician GSE

Diving Experience

  • 2000+ dives
  • 1300+ wreck dives

Community Involvement

  • 1994 Founder of the WDS diving group
  • Localized a number of unexplored shipwrecks in Mediterranean Sea, Baltic Sea and North Sea.
  • Shipwrecks researches and surveys in collaboration with Cultural Heritage Authorities in Italy and Croatia

Special interests

  • Naval History

Additional languages

  • Italian
  • English
  • Spanish