The Blog

Gear Reviews & Dive Science

Written by a chemist who dives. Data over vibes. Real tests, real opinions, real sign-offs.

Best Dive Computers of 2026: A Data-Driven Comparison

I wore three dive computers simultaneously for 60 dives. The analytical chemist in me couldn't help it. Here's what the data actually shows about the Shearwater Peregrine 2, Garmin Descent Mk3i, and Suunto D5.

Chad WaldmanMar 15, 202610 min

Buying Guides

Wetsuit Buying Guide: How to Choose the Right Thickness

I've shivered through enough dives to have opinions about this. Real talk about the 3mm vs 5mm vs 7mm decision, from someone who dives cold water voluntarily.

Chad Waldman·9 min read

Gear Reviews

GoPro vs Paralenz: Which Underwater Camera Wins?

I own both cameras. I've shot hundreds of dives with each. One of them wins underwater, and it's not the one most people buy.

Chad Waldman·9 min read

Buying Guides

Why Your BCD Choice Matters More Than You Think

Most divers grab whatever BCD the shop has. I did that for years. Then I actually thought about it, and my air consumption dropped 15%. Here's what I learned.

Gear Reviews & Dive Science

Best Dive Computers of 2026: A Data-Driven Comparison

Wetsuit Buying Guide: How to Choose the Right Thickness

GoPro vs Paralenz: Which Underwater Camera Wins?

Why Your BCD Choice Matters More Than You Think

The Science Behind Regulator Performance in Cold Water

Best Budget Scuba Gear for New Divers in 2026

Underwater Photography Tips: Camera Settings That Actually Work

Fin Science: Split vs Blade vs Force Fins Explained

Best Places to Scuba Dive in 2026 — Scored & Ranked by Data

Cave Diving: Everything You Need to Know

What Does SCUBA Stand For?

How Deep Can You Scuba Dive?

The Bends in Scuba Diving: Causes, Symptoms & Prevention

Nitrogen Narcosis: The Martini Effect Explained

Is Scuba Diving Dangerous? An Honest Look at the Risks

Dive Tables: How to Read Them (Even If You Have a Dive Computer)

Deepest Scuba Dive Ever: Records & What Happens at Extreme Depth

Scuba Certification Cost in 2026: The Real Price Breakdown

How to Get Scuba Certified: Step-by-Step Guide

PADI Advanced Open Water: What to Expect & Is It Worth It?

Nitrox Certification: The Science, the Cost, and Whether It's Worth It

PADI Rescue Diver: The Certification That Changes How You Dive

PADI Divemaster: Your Path to Pro

Does Scuba Certification Expire? What You Need to Know

Scuba Diving Certification Levels Explained

PADI vs SSI: An Honest Comparison (No Affiliate, No Bias)

Scuba Diving for Beginners: What I Wish Someone Had Told Me

Scuba Diving in Cozumel: Score 80.7 — Drift Diving Capital

Scuba Diving Bonaire: Score 80.7 — Shore Diving Capital of the World

Cenote Diving in Mexico: A Guide to the Yucatan's Underwater Caves

Whale Shark Diving: 68 Sites Scored — Where to Actually See Them

Shark Diving: Every Species, Every Destination, Scored

Best Diving by Month: A Data-Backed Calendar for 2026

Manta Ray Diving: 85 Sites Scored — Where to Actually See Them

Best Liveaboard Destinations 2026: Scored & Ranked

Great White Shark Cage Diving: The Real Experience

Scuba Diving Thailand: Where to Dive & What to Expect

Scuba Diving Costa Rica: Pacific & Caribbean Guide

Scuba Diving Turks & Caicos: Wall Diving Paradise

Scuba Diving the Great Barrier Reef: What You Actually Need to Know

Scuba Diving Belize: Blue Hole, Barrier Reef & More

What Is a Liveaboard? The Complete Guide for Divers

Raja Ampat Liveaboard Guide: Routes, Costs & What to Expect

Galapagos Liveaboard Diving: Hammerheads & Beyond

Maldives Liveaboard Diving: Mantas, Channels & Atolls

How Much Does Scuba Diving Cost? A Realistic Breakdown

How Much Does Scuba Gear Cost? The Real Numbers

How Old Do You Have to Be to Scuba Dive?

Is There a Weight Limit for Scuba Diving?

Best Reef Safe Sunscreen for Divers & Snorkelers (2026)

Best Dive Watches for Scuba Divers (2026)

Best Underwater Cameras for Scuba Diving (2026)

Best Dive Sites in the World: 2026 Definitive Guide

Scuba Diving for Beginners: Everything You Need to Know

Best Liveaboard Diving Destinations 2026

When to Go Diving: Month-by-Month Destination Guide

How Much Does Scuba Diving Cost? Complete Breakdown 2026

Rent vs Buy Scuba Gear: The Break-Even Math

The Rescue Diver Certification: The Cert Everyone Skips (And Shouldn't)

Buoyancy Control: How to Stop Flailing and Start Floating

Night Diving: What to Expect on Your First Night Dive

How Much Does Scuba Diving Cost? The Honest Country-by-Country Breakdown

PADI vs SSI vs NAUI: Which Scuba Certification Is Right for You?

Scuba Diving Insurance: DAN vs Travel Insurance Explained

How to Equalize Your Ears While Diving: Every Technique Explained

Flying After Diving: How Long Should You Really Wait?

What Dive Gear to Buy First: The Priority Checklist

Best Manta Ray Diving in the World (With Season Guide)

Best Shark Diving Destinations: Every Species, Every Location

Where to Swim with Whale Sharks: The Complete Guide

Best Turtle Diving: Where to See Sea Turtles Underwater

Best Macro Diving Destinations (Nudibranchs, Frogfish, Seahorses)

Best Places to See Dolphins While Diving

Best Whale Diving: Humpbacks, Sperm Whales, and More

Best Octopus and Cuttlefish Diving

Diving in Indonesia: Raja Ampat, Komodo, Bali & Beyond

Diving in Thailand: Similan Islands, Koh Tao & Richelieu Rock

Diving in the Philippines: Tubbataha, Malapascua & Moalboal

Diving in Mexico: Cenotes, Socorro & Sea of Cortez