Photo by Teemu Virtanen · CC BY-SA 3.0
GUE Technical Diver 1
A six-day course introducing technical diving with mandatory decompression stops, mixed gases (enriched air and trimix), and extended bottom time management. Teaches decompression procedures, gas switching techniques, extended-range diving, and bailout strategies for open-water technical applications. Establishes foundation for deep exploration. Designed for technical divers ready for mandatory decompression obligations.
Centres that teach this course
1 dive centre in the directory publish a price for this exact certification, checked Sep 2026. Each centre's own wording is shown beneath its name. Ranges cover whole-course prices only — where a centre charges per day or per dive, its rate is listed separately below, since a daily figure is not comparable with a course total.
- Zero Gravity Dive Center MexicoMexicoGUE Technical Diver 1single occupancy$4,025double occupancy$3,815$4,025total
These prices are not like-for-like. Two centres can charge very differently for the same certification because they include different things. One price may cover twinsets, stages, deco gas and cylinder rental for every training dive, a dedicated classroom for the theory, boat or transport to the site, and the agency's registration and materials; another may be tuition only, with all of that charged separately — or the other way round, with a centre bundling in extras the first leaves out. Class size, whether the course is one-to-one, and how many days are allowed for it move the figure too. Check what each centre's price includes before comparing them, and confirm with the centre before booking.
Consumables are usually extra. Sorb, helium, O₂ and other fills, park and cenote fees, certification fees and rental are commonly charged on top.
Packages combining several certifications, upgrades from an existing one, and open-ended day rates are excluded — none of them is the standalone price of this course, and including them would move the figures away from what a new student can actually book.
Prerequisites
Minimum age 18; GUE Technical Fundamentals certification; minimum 100 logged dives beyond entry-level; drysuit experience (25 non-training dives or 15 dives after Drysuit Primer) if applicable; cave environment Tech 1 requires 25 additional Cave 2 level dives; physically and mentally fit; non-smoker; able to swim.
Standards
What a diver must demonstrate to pass this course — not always published by the certifying agency.
Minimum of seven dives (including three trimix experience dives) and at least 48 hours of instruction.
Instructors Teaching This Course
Philippines
Malta
United States
Dive Centres Offering This Course
We're still building out the directory country by country, so this list isn't every instructor or dive centre teaching it in the world — more locations are coming soon.
Common questions about GUE Technical Diver 1
How much does GUE Technical Diver 1 cost?
One centre in the TecDiveTools directory publishes a whole-course price for GUE Technical Diver 1: Zero Gravity Dive Center Mexico, at $4,025. Prices differ mainly in what they include, so compare the inclusions before comparing the numbers. Prices were last checked in September 2026.
How long does GUE Technical Diver 1 take?
6 days, based on the durations 1 centre publishes for it. The time depends on the centre's schedule, weather, and how quickly the required skills are demonstrated — agencies set a minimum number of dives, not a fixed number of days.
What are the prerequisites for GUE Technical Diver 1?
GUE's standards require: Minimum age 18; GUE Technical Fundamentals certification; minimum 100 logged dives beyond entry-level; drysuit experience (25 non-training dives or 15 dives after Drysuit Primer) if applicable; cave environment Tech 1 requires 25 additional Cave 2 level dives; physically and mentally fit; non-smoker; able to swim.
What is the minimum age for GUE Technical Diver 1?
GUE's standards state: Minimum age 18.
How many dives do I need before starting GUE Technical Diver 1?
GUE's standards state: Minimum 100 logged dives beyond entry-level.
What does GUE Technical Diver 1 training involve?
According to GUE's published standards: Minimum of seven dives (including three trimix experience dives) and at least 48 hours of instruction.
Where can I take GUE Technical Diver 1?
3 dive centres and 23 instructors in the TecDiveTools directory teach GUE Technical Diver 1, in the Philippines, Egypt, Mexico, Malta and the United States. Each is listed further up this page.
Does the price of GUE Technical Diver 1 include gas and equipment?
Not always — it varies by centre. Certification fees, equipment rental and boat or site fees are commonly charged on top of the course price. Each centre's price list on TecDiveTools shows what it notes as included.