DeepCave
The Journal
How Caves Actually Form: A Field Guide to Karst and Speleogenesis
Most of the world's great cave systems owe their existence to one unglamorous process: slightly acidic water slowly dissolving limestone over hundreds of thousands of years. Here's how it actually works.
Single Rope Technique Basics: Rigging Your First Pitch Safely
SRT lets one caver descend and ascend a fixed rope independently, without a second person belaying. Here's what the technique actually involves, and why it demands real training before your first pitch.
Choosing and Running a Caving Headlamp: Lumens, Runtime, and Backups
A caving headlamp lives a harder life than any headlamp you've owned for hiking. Here's what actually matters when you're picking one, and why every serious caver carries a second light.
Layering for the Underground: Staying Warm (and Dry) on a Multi-Hour Trip
Caves sit at a near-constant temperature year-round, which sounds like it should make dressing easy — but activity level, water, and trip length change the real experience more than the thermometer does.
Reading a Cave Survey: Compass, Clino, and Tape, Explained
Every cave map starts as a string of raw numbers — a bearing, an angle, a length — read off three simple instruments, one leg at a time. Here's how those readings become a map.
Foul Air Underground: What Cavers Should Know About CO2 and Ventilation
Bad air is a real, if uncommon, caving hazard — and unlike a slippery ledge or a loose rock, it's completely invisible until it's already affecting you. Here's how it happens and how cavers manage the risk.
Planning Your First Caving Trip: A Practical Checklist
A good first caving trip is won or lost in the planning, days before anyone reaches the entrance. Here's what actually matters, from finding a group to leaving word behind.