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Divemaster Training Program

SSI Professional · Pro Training
The first level of professional diving. Eight weeks, three phases, under the guidance of one of Koh Tao’s most experienced pro training mentors.
Packages from

฿37,000

6-12 weeks • 5-6 days/week
Divemaster: The SSI Divemaster Course is your gateway to becoming a professional scuba diver enabling you to guide fun dives, lead underwater adventures, and share the beauty of the ocean with others.
Packages from

฿37,000

6-12 weeks • 5-6 days/week
Green Fins Silver
Certified responsible operator
18 years on Koh Tao
Founded 2008
10,000+ certified
SSI Blue Oceans center
5.0 • Google
1,600 Reviews
Certification
SSI Divemaster
+ Science of Diving
Duration
6-12 weeks
5-6 days per week
Min Dives
40 Logged
25 hours or more
Min age
18 years
Medical Sign-off req.

Who is this course for?

Overview

Career Track Divers

You want to work in the dive industry — as a divemaster, eventually as an instructor, or somewhere else in the professional world. The program is designed to get you industry-ready, not just certified. You'll leave knowing how to lead divers, manage a dive operation, and carry yourself as a professional.

Serious Recreational Divers

You're not planning to work as a dive pro — but you want to be a significantly better, more knowledgeable diver. The DM program covers the science of diving at a level recreational courses don't reach. Many candidates choose this path to become more comfortable in the water and more aware of what's happening around them.

Beyond the SSI curriculum

The Goodtime approach

Goodtime takes the standard SSI Divemaster curriculum and expands it through areas of real professional diving that prepare a new candidate for the reality of the industry — not just the exam. That means more time in the water, more exposure to actual dive operations, and a closer relationship with the professionals running them.

The program runs under the guidance of Katie, Goodtime’s head instructor and pro training mentor. With almost a decade of dive industry experience on Koh Tao — across recreational and professional teaching, underwater videography, equipment service, and dive operations management — Katie’s focus has always been on building divers who are genuinely confident and capable in the water.

Goodtime believes that being part of a close-knit community of like-minded dive professionals who take their duty of care seriously gives new professionals the best possible start. By the end of your training you’ll be industry ready and part of that community.

The three phases of development

program structure
Phase 1
3 weeks

Foundations

Science of Diving program
Water fitness evaluations
SSI General Training Standards
Navigation workshop
Buoyancy, finning and trim
Briefing and leading
Boatmaster skills
Diver Stress and Rescue
Phase 2
2 weeks

Industry Experience

Assisting SSI courses with our dive team
Basic Diver courses
Refresher courses
Open Water courses
Advanced Open Water
Diver Stress and Rescue with React Right
Phase 3
3 weeks

Mastering the Craft

Practicing professional DM duties under mentor supervision in a real professional environment
Practicing briefing and leading
Final evaluations

Three packages, one program

SSI professional active status fees are ฿16,900 and are paid directly to SSI. These are not included in any of Goodtime’s tuition packages. They cover your SSI membership and first year of active professional status.
TUITION PACKAGES

Starter Package

Intro
฿37,000
8 weeks
Science of Diving
Professional final exam
Dive Guide / Divemaster
Basic insurance · 8 weeks
DMT goodie pack
Pro discounts on equipment
Unlimited diving once enrolled

Career Builder

premium
฿125,000
12 weeks
Everything in Starter Package
1 year professional diving insurance
Gold safety pack (premium level: reel, dSMB, cutting device, and whistle; wetnotes, choice of torch)
Deep, Nitrox 40, Navigation & Night specialties
Sidemount & Advanced Wreck specialties
2 week professional internship
Unlimited diving once enrolled

The onboarding process

BEFORE YOU ENROLL

Before signing anyone up for the program, Goodtime schedules a meeting — in person or remotely — with our head instructor to talk through your intentions, goals, and current experience level.

Not every candidate has the same goals. Some are career-track, some are looking to become better recreational divers. The onboarding conversation lets Goodtime tailor the program focus accordingly.

During the meeting you’ll also be assigned pre-program homework — reading materials, profile requirements, and guidance on equipment purchases before you arrive.

Book a call
In person on Koh Tao or remotely — whichever works for you.
Talk through your goals
Career-track, personal development, or somewhere in between.
Get your homework
Reading materials, SSI profile setup, and equipment guidance.
Choose your package
Our team will help you pick the right package for your goals and timeline.

Experience needed before you start

Prerequisites

Personal Prerequisites

18 years or older

40 logged open water dives (25 hours or more)

Medical sign-off from a physician

Course Prerequisites

React Right (valid within last 2 years)

Deep Diver or equivalent

5 logged Navigation dives verified by a pro

5 logged Night dives verified by a pro

What you need to own for the course

required equipment
Dive computer with nitrox capability
Surface Marker Buoy
30m spool
Cutting device
Compass
Audible signalling device
Underwater writing tool
Underwater torch

Common Questions about the Program

Frequently Asked Questions

Goodtime recommends at least 8 weeks for the Starter package. While the SSI program can be completed faster, the difference extra time makes to a new professional is significant — you need space to absorb the information and practice the skills properly. The Industry Ready and Career Builder packages run to 10 and 12 weeks respectively.
No. Roughly half of Goodtime’s DM candidates don’t plan to work actively in the industry. The program works equally well as a path to becoming a more capable, knowledgeable recreational diver. The onboarding meeting is specifically designed to understand your goals and shape the program accordingly.
SSI professional active status fees are ฿16,900 and are paid directly to SSI. These are not included in any of Goodtime’s tuition packages. They cover your SSI membership and first year of active professional status.
You can begin portions of the program from 40 logged dives. Goodtime offers discounted fun diving packages for candidates who need to build up their logged numbers before the professional aspects begin — 2 dives at ฿1,700, 6 dives at ฿5,000, or 10 dives at ฿8,000.
Yes — the onboarding meeting can be done in person or remotely. Many candidates who are still planning their trip do the call from home so they arrive prepared and ready to begin.

Book an onboarding call

The first step is a conversation — in person or remotely. Talk through your goals with our team and find the right package for where you’re headed.

READY TO GO PRO?
Book a Call →

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