- Kelvin & Anabel
- Ivo Chiarino
- Giovanni Gastaldo
- Antoni Velázquez
- Lucas Méndez
Kelvin and Anabel Davidson have been together since 2005, sharing their passion for diving and adventure.
Born 8 years before her future husband in Cebu, Philippines, Anabel initially worked as a company accountant before moving into the world of personal training and teaching aerobics. A four-year stint at Gold’s Gym in Doha, Qatar introduced her to BSAC club diving, and would lead her into the world of professional diving.
Born on a little patch of antipodean paradise called New Zealand, Kelvin grew up in and around the ocean, where he first developed a passion for freediving before moving into SCUBA diving. A varied professional background in area’s as diverse as Fitness Trainer, Commercial Fisherman, Public Accountant, Company Director, and several years as a Nightclub Bouncer, make for a few interesting stories and humorous tales, and give him a fairly well-balanced outlook on life.
Anabel moved back to the Philippines in 2002 to teach diving in Puerto Galera, Kelvin moved to Puerto Galera in 2004. We met while working with the excellent folk at Asia Divers and Tech Asia, where we spent 4 great years exploring the depths of the Verde Island Passage. Spare time was spent visiting the WWII wrecks of Subic Bay and Coron in the Philippines, and trips further afield to the South China Sea, and the Force-Z wrecks HMS Repulse and Prince of Wales.
From 2008-2010 we managed the Truk Lagoon Dive Center and spent 3 years teaching Technical, Trimix, and Wreck programs in the world’s biggest and best wreck diving playground.
During this time a few sneaky cave diving trips to Mexico were made, leading to a permanent move at the end of 2010. Since then, we have made a home in Tulum, on the Mayan Riviera, where we have worked to bring our passion for cave and technical diving to those who want to share it with us.
For years we have been active dry cavers, and have spent many months wandering the jungles of South East Asia (Malaysia, Borneo, Thailand, Cambodia, Vietnam, Laos, and Philippines) in search of underground adventures.
When not working, we can often be found in the gym trying to move heavy things around or strolling the Caribbean coastline of Tulum and the Sian Ka’an Biosphere with "Buddy", the worlds cuddliest English Bull Terrier.
We practice what we preach and endeavor to travel and dive for ourselves as often as possible, with wreck diving trips back to Truk Lagoon and cave exploration with the Asian Karst Exploration Project in the Philippines, as well as locally with the Tulum Underwater Explorers family.
Anabel is “She Who Must Be Obeyed” and runs both our Tulum and Cozumel diving operations.
Kelvin has been teaching technical diving since 2005 and has more than 8000 logged dives. He is a passionate and thorough educator who teaches from a broad base of experience, and whose calm, relaxed and supportive style puts students at ease, bringing out the best in them.
GUE Instructor for:
- Recreational Diver 1 - Nitrox
- Recreational Diver 2 – Triox
- Recreational Diver 3 - Trimix
- Doubles Diver
- Drysuit Diver
- Navigation, Rescue, and Triox Primers
- Gas Blender
- GUE Fundamentals Diver
- DPV 1 Diver
- Technical Diver 1
- CCR 1 Diver
- Cave Diver 1
- Cave Diver 2
- DPV Cave Diver
IANTD Instructor/Instructor Trainer for:
- Open Water through DiveMaster, Nitrox Diver, Deep Diver
- Open Water Sidemount Diver
- Essentials Diver
- Advanced Nitrox, Advanced Recreational Trimix, Technical, Normoxic Trimix, Trimix Diver
- Cavern, Intro to Cave, Full Cave, Technical Cave Diver
- Stage and Multistage Cave Diver
- DPV Cave Diver
- CCR Cave Diver
- Sidemount Cave Diver
- Advanced Sidemount Cave Diver
- Wreck, Advanced Wreck, Technical Wreck Diver
- Nitrox and Trimix Blender
Fathom Dive Systems Rebreather Instructor Trainer
- CCR Cave Instructor for:
- Fathom CCR
- Fathom Gemini
- JJ-CCR
- SF2-eccr
- Pelagian DCCCR
- ISC Megalodon
- KISS SideWinder
Ivo Chiarino is a cave diving instructor born and raised in Barcelona, Spain. He was introduced to the underwater world at the age of six through his family, whose passion for the aquatic environment sparked his own lifelong connection to diving.
As his curiosity and dedication grew, Ivo pursued a professional path in diving education. He spent four years working seasonally in the Canary Islands, refining his skills and building a strong foundation as a dive professional. In 2015, seeking new challenges and opportunities, he relocated to Akumal, Mexico.
It was there, in the caves of Quintana Roo, that Ivo discovered his true calling in cave diving. Immersed in one of the world’s most renowned cave systems, he developed a deep appreciation for exploration, precision, and discipline beneath the surface.
As an instructor, Ivo is committed to the highest standards of training. His focus is on building competent, confident divers who prioritize safety, respect the environment, and fully embrace the spirit of exploration.
Joining Third Dimension Diving has been a defining step in both his personal life and professional career, surrounding him with a community of like-minded individuals who share his passion for excellence, adventure, and continuous growth.
Ivo teaches in Spanish, Catalan, English, Italian, and gets by in French.
GUE Instructor for:
- Discover Diving
- Recreational Supervised Diver
- Open Water
- Advanced Open Water
- Master Diver
- GUE Basic/Technical Fundamentals
- Doubles Diver
- Drysuit Diver
- Navigation Primer
- Rescue Primer
- Triox Primer
- Gas Blender
- DPV 1 Diver
- Tech 1 Diver
- Cave 1 Diver
- Cave 2 Diver
- CCR Fundamentals
IANTD and TDI Instructor for:
- Open Water through Divemaster, Nitrox Diver, Deep Diver
- Open Water Sidemount Diver
- Essentials Diver
- DPV Diver
- Advanced Nitrox, Advanced Recreational Trimix Diver
- Normoxic Trimix Diver
- Cavern, Intro to Cave, Full Cave Diver, Technical Cave Diver
- Stage and Multistage Diver
- Cave Survey and Cartography Diver
- Sidemount Cave Diver
Better known as Gio, Giovanni discovered his passion for caves while spelunking in his home country of Brazil. At the time, he was building a career in management consulting for one of the largest companies in the United States while completing his MBA. Despite the demands of that path, he consistently sought opportunities to escape—traveling to explore the ocean, caves, and remote landscapes whenever possible.
Over time, those brief escapes evolved into something more meaningful. Realizing that his passion for exploration could become a full-time lifestyle, Gio made the decision to leave the corporate world behind and pursue a career in diving.
He moved to the Dominican Republic, where he completed his first cave diving course and began working as an instructor and guide in a resort environment. This experience deepened his commitment to cave and technical diving, ultimately leading him to Mexico to further expand his training and experience.
In Mexico, Gio worked extensively in Playa del Carmen, Cozumel, and Tulum, gaining valuable experience in both recreational and technical environments. It was there that he eventually became part of the Third Dimension Diving team.
Today, Gio is an IANTD Instructor Trainer and a key member of the Instructor Development Team at Third Dimension Diving. He also manages the 3D Service Center, where he has earned a reputation as a true specialist in drysuit repair and equipment maintenance.
Based in the jungle with his dog Consuela, Gio spends as much time in the water as possible—whether cave diving, swimming in cenotes, or exploring the open ocean. He teaches in English, Portuguese, and Spanish.
Giovanni is also a GUE Cave and Technical Diver, bringing a broad and well-rounded perspective to his teaching and diving philosophy.
IANTD and TDI Instructor for:
- Open Water through Divemaster, Nitrox Diver, Deep Diver
- Open Water Sidemount Diver
- Essentials Diver
- DPV Diver
- Advanced Nitrox, Advanced Recreational Trimix Diver
- Normoxic Trimix Diver
- Cavern, Intro to Cave, Full Cave Diver, Technical Cave Diver
- Stage and Multi-stage Diver
- DPV Cave Diver
- Sidemount Cave Diver
- Fathom Dive Systems CCR Instructor Trainer
Antoni was born in Faja de Oro, Cacahoatán, in the beautiful region of Chiapas, Mexico. During his childhood, he developed a strong passion for soccer, playing competitively until the age of eighteen, when he reached a semi-professional level.
He later met his wife, Flor, and together they moved to Tulum, where Antoni began working at Cenote Aktun Ha—also known as “Cenote Carwash.” There, he welcomed tourists and divers alike with his signature enthusiasm and genuine smile. It was in this environment that the Third Dimension Diving team first met him, and in 2022, Antoni officially joined the family.
Today, Antoni plays a key role in the daily operations of the shop. He is responsible for managing the filling station, assisting with drysuit repairs, and handling general equipment maintenance—ensuring everything runs smoothly behind the scenes.
Known for his contagious laughter and positive energy, Antoni is often heard before he is seen. He brings a welcoming spirit to the team and ensures that everyone who walks through the door feels at home.
Lucas discovered diving at the age of 10 in Mar del Plata, Argentina, an experience that quietly sparked what would become a lifelong passion.
Driven by curiosity and a love for exploration, he spent his early years traveling and immersing himself in different cultures and languages, living in countries such as Germany, France, and later New Zealand.
Years later, while traveling through Brazil, Lucas reconnected with diving during a wreck dive in Recife. It was there that he first witnessed technical divers in action, an encounter that would redefine his path. Inspired by their precision and discipline, he set his sights on becoming a technical diver himself.
He moved to Mexico to pursue professional training, eventually becoming a technical and cave diving instructor. After working in Playa del Carmen and Cozumel, Lucas settled in Tulum, one of the world’s most renowned destinations for cave diving.
Today, Lucas continues to refine his skills and share his passion, committed to high standards, continuous development, and excellence in technical diving. Lucas can teach in Spanish, English, and Portuguese.
IANTD and TDI Instructor for:
- Open Water through Divemaster, Nitrox Diver, Deep Diver
- Open Water Sidemount Diver
- Essentials Diver
- DPV Diver
- Advanced Nitrox, Advanced Recreational Trimix Diver
- Cavern, Intro to Cave, Full Cave Diver, Technical Cave Diver
- Stage and Multi-stage Diver
- Sidemount Cave Diver
