Their rivers. Your Top End.
Stay croc wise.
From Darwin to Kakadu to the Kimberley and down the Queensland coast, this country belongs to the saltwater crocodile — the largest living reptile on earth. Written by experts with sixty years alongside crocodilians, this guide exists to empower safe decisions through education — so people stay safe, and people and wildlife never come into conflict.
By Tom & Stacey Crutchfield and Braxton Warren · Read it free in the Citadel Culebra reader
The headlines didn’t have to happen.
A swimmer in a waterhole the locals never touch. A fisherman standing at the same spot on the bank, cast after cast. A traveller who thought the sign was for someone else. The stories repeat because the knowledge doesn’t reach the people walking to the water’s edge.
Nearly every one of these tragedies was preventable — not by luck, but by knowledge. That is the entire reason this book exists: to empower people to make safe decisions and stay educated, so there is no conflict between people and wildlife. When you understand these animals — where they live, how they think, and what they are capable of — you keep your family safe, and you keep the animals wild.
The rules the warning signs don’t explain.
Every “no swimming” sign has a reason underneath it. This book gives you the reasoning — so you can read the water with judgment instead of guesswork.
Saltie or freshie
Two crocodiles share this country — how to know which water holds which.
The ambush
How a four-metre animal disappears in a metre of water — and what to look for.
The wet season
Floodwater moves crocodiles into new country every year. The map you knew is gone.
Clear water
Visibility is a false comfort — clear is not safe, and neither is 'shallow'.
Fishing & boats
The bank, the boat ramp, the cast net — how to fish croc country safely.
Living here
The household rules that keep kids and dogs safe when home is croc country.
Which waters, which seasons — the Top End, Kakadu, Darwin's beaches, the Kimberley, and the Queensland coast. How to read a bank before you use it.
Detailed, plain-English natural history — their senses, their seasons, their intelligence, and what 200 million years of design is capable of.
How to behave in their part of the world — at the water's edge, fishing, boating, camping, with kids and dogs — so an encounter never becomes an incident.
The emergency playbook: exactly what to do if the worst happens, for yourself or someone else.
The water has an owner.
Every river, billabong, and beach in croc country belongs to something that was here two hundred million years before us. You don’t have to fear it. You have to know it’s there.
Not a PDF. A reader built for this book.
The book lives in its own reader. Open it in Cinema and the chapters play past you over real crocodile footage; switch to Pages and it’s a clean, illustrated field guide. Install it on your phone and it opens like an app.
Scroll the book like a film — every section opens over real crocodile footage.
A quiet, beautifully set reader with the field-guide plates.
Search every chapter — “wet season”, “cast net”, “Kakadu” — and jump straight there.
One tap adds it to your home screen. iPhone and Android, no app store.
Master owners can save the whole book to their device.
The Australian Edition is free to read. The $4.99 master adds the American Edition.
Sixty years with these animals.
Not internet advice — the working judgment of people who keep, handle, and understand crocodilians, written down so your family has it too.
Tom Crutchfield
Six decades with reptiles — including running his own crocodile operation and hand-raising critically endangered Cuban crocodiles.
Kevin McCurley
Founder of NERD (New England Reptile Distributors) and Chief Academic Officer of Citadel Culebra. He wrote the book on ball pythons, and has spent years hands-on with alligators, from hatchlings to wild adults.
Stacey Crutchfield
The family's behavioral specialist. Her first lesson: these animals are not dumb — they're remarkably intelligent, and intelligence paired with an apex predator's capability is exactly why they demand respect, understanding, and space.
Braxton Warren
Founder of Citadel Culebra, the reptile-keeping school. Twenty years studying crocodilians — pictured with Black Blizzard.
The Australian Edition is free. The master is $4.99.
Safety education shouldn’t have a paywall — so the Australian Edition is free to read, cover to cover. One $4.99 unlock opens the whole master book, every edition, only here in our own reader.
The complete Australian Edition in the Citadel Culebra reader — every chapter, cover to cover.
- · The whole Australian book — not a teaser
- · Cinema + Pages modes, on any device
- · No card — just your email
One unlock opens every edition of the book in the reader — direct from Citadel Culebra.
- · Adds the complete American Edition — Croc & Gator Wise
- · Save the whole book for offline reading
- · Installs like an app · free updates to this edition
Read the Australian Edition free — right now.
Enter your email and the reader opens instantly — the complete Australian Edition, every chapter, in Cinema or Pages. No card, no trial clock. Just the book, and occasional field-safety notes from Citadel Culebra.
Common questions.
What is this book, exactly?
A plain-English field safety guide to Australia's crocodiles — the saltwater crocodile and the freshwater crocodile. It covers where they live, how they think, the wet season, the myths that get people killed, how to behave in their part of the world — from Darwin's beaches to Kakadu to the boat ramp — and exactly what to do in an emergency. An evening's read.
Why did the authors write it?
Because the tragedies repeat. A swimmer in a waterhole locals never touch, a fisherman on the wrong bank, a visitor who thought the sign was for someone else — nearly all preventable with knowledge nobody had handed them. The authors have spent sixty years with crocodilians; this book exists to empower safe decisions through education, so people and wildlife never come into conflict.
Are these animals really that dangerous?
The saltwater crocodile is the largest and most capable predator in Australia — and a remarkably intelligent one. That combination is exactly why understanding them matters. Respecting what they're capable of, knowing where they live, and giving them their space is what keeps people safe — and keeps the animals wild.
Is the Australian Edition really free? Why?
Really. Every chapter, cover to cover, free in the Citadel Culebra reader — because a safety guide does the most good when anyone near the water can read it. The $4.99 master unlock is what funds that.
What does the $4.99 master unlock add?
One purchase opens the whole master book in the reader. Today that means the complete American Edition — Croc & Gator Wise, covering alligators and the American crocodile — plus saving the entire book to your device for offline reading. One-time, with free updates to this edition.
How does the app-on-my-phone thing work?
Open the reader in your phone's browser and tap the Install button (or Share → “Add to Home Screen”). The cover appears like an app icon and the book opens full-screen. iPhone and Android — no app store needed.
Can I get this anywhere else?
No. This book is only sold here. It reads in the Citadel Culebra reader, which installs to your home screen, works offline, and keeps every edition you have unlocked in one place. We own the whole thing end to end, so nobody else can pull it down or change the terms on you.
Who is it for?
Anyone who lives, fishes, boats, camps, or travels where crocodiles live — the Top End and Darwin, Kakadu, the Kimberley, and the Queensland coast — and anyone visiting croc country for the first time.
Read it once. Carry it for life.
The water’s edge has rules. Learn them tonight — the Australian Edition is free, and the whole master is $4.99.
“If we can teach people about wildlife, they will be touched. Share my wildlife with me. Because humans want to save things that they love.”
Nearly twenty years on, Steve Irwin’s message matters more than ever. He showed the world that education — not fear — is what protects both people and wildlife. That conviction runs through every page of this book: when people understand these animals, they make safe decisions, and the animals stay wild and respected.
Quote shared in tribute to Steve Irwin’s conservation legacy. Citadel Culebra, Vivarium Culebra LLC, and this book have no affiliation with, and no sponsorship or endorsement from, Steve Irwin’s estate, the Irwin family, or Australia Zoo.