George Blizzard
Led by a working Koh Tao instructor with local dive pros who know the reefs, the boats and the DMT rhythm.
A Scuba Guide · Koh Tao
George's reef notes.Made for briefings.
Koh Tao sites, species and boat-ready context, shared by request before launch.
Dive in
Partner program
Built with Koh Tao shops, not sold over them.
Shops get free partner access, instructor feedback channels and bulk codes they can bundle into DMT packages.
Hydronauts
Global Reef
Third partner TBC
Placeholder slots until written logo permission is confirmed
How it works
Four taps between the boat and the brief.
- A Scuba GuideStep 128 SITES
Chumphon Pinnacle · Southwest Pinnacle · Sail Rock · Shark Island…
Step 1
Pick your dive site.
Tap one of 28 Koh Tao sites. See the map, depth profile, currents, entry point, and the conditions to watch for before you drop.
- A Scuba GuideStep 294 species
Whale shark · Titan triggerfish · Parrotfish · Chevron barracuda…
Step 2
See every fish that lives there.
Each site is cross-linked to the species you'll actually encounter. Tap one to read size, behaviour, and the best depth to spot it at.
- A Scuba GuideStep 3Your dive plan
One tool. Every instructor. Same brief, every shift.
Step 3
Brief the dive.
Build your dive plan and follow it on the boat. Tap through site notes, depth profile, currents, hazards and target species — the same canonical brief, every instructor, every shift.
- A Scuba GuideStep 4Offline ready
Built as a web app. Add it to your home screen before the boat leaves.
Step 4
Offline from launch.
From 15 August 2026, load the pack on the pier, then keep the site notes and species data in your pocket when the boat loses signal.
Koh Tao map key
Numbered for boat briefings.
Draft numbering until George confirms the canonical map order. Buoyancy World is reserved as a visible placeholder slot.
- 1 ·Twins · Beginner · 5–18m
- 2 ·Buoyancy World · Slot pending · Depth TBC
- 3 ·Chumphon Pinnacle · Advanced · 12–40m
- 4 ·Sail Rock · Intermediate · 5–40m
- 5 ·Japanese Gardens · Beginner · 2–16m
- 6 ·White Rock · Beginner · 5–25m
- 7 ·Green Rock · Intermediate · 5–25m
- 8 ·Shark Island · Intermediate · 5–25m
- 9 ·HTMS Sattakut · Advanced · 18–30m
- 10 ·Mango Bay · Beginner · 1–16m
- 11 ·Aow Leuk · Beginner · 2–18m
- 12 ·Tanote Bay · Beginner · 2–18m
- 13 ·Hin Wong Pinnacle · Advanced · 5–30m
- 14 ·Pottery · Beginner · 5–12m
- 15 ·Three Rocks · Beginner · 5–14m
- 16 ·Hin Pee Wee · Intermediate · 6–28m
- 17 ·313 Wreck HTMS Suphairin · Advanced · 16–27m
- 18 ·No Name Pinnacle · Advanced · 14–30m
- 19 ·Red Rock · Intermediate · 2–22m
- 20 ·Junkyard Reef · Beginner · 5–12m
- 21 ·Aow Mao · Beginner · 3–25m
- 22 ·312 Wreck HTMS Hanhak Sattru · Advanced · 13–24m
- 23 ·Laem Thian · Intermediate · 3–20m
- 24 ·Hin Ngam · Beginner · 3–12m
- 25 ·Southwest Pinnacle · Advanced · 5–30m
- 26 ·Samran Pinnacle · Advanced · 9–28m
- 27 ·Lighthouse Bay · Beginner · 2–14m
- 28 ·Buddha Point · Beginner · 3–14m
- 29 ·Chalok Bay · Beginner · 5–14m
Every dive, every briefing
Cheaper than the book, and it does not get wet.
Tap through 28 Koh Tao dive sites and 94 species. Read entry notes, currents, hazards, route ideas and the fish your students will actually meet. Offline access launches 15 August 2026.
Who we are
A Koh Tao guide built for the people who brief here every day.
Global Reef angle
The partner program gives the conservation work a place inside the product, not as a poster on a wall.
English + Thai
Briefing content in both languages gives Thai staff the same reference surface as visiting instructors and trainees.
The shift
Deeper briefings. Cleaner handovers. Same reference, every shift.
Before
The book
A shared printed guide, passed around the shop and carried onto wet boats.
With A Scuba Guide
Offline
Site notes, hazards, routes and species in every instructor's pocket from launch.