Ditch the Shivers: Why the Drysuit Specialty is Your Passport to Year-Round Adventure

Living in Phoenix, we are experts at managing heat. We know exactly which hiking trails to hit at sunrise and where to find the best air conditioning. But when it comes to scuba diving, many Arizona divers have a self-imposed “off-season.” When the water temperature in Lake Pleasant drops below 65°F, the wetsuits get packed away, and the diving stops until May.

And let’s talk about those coveted road trips to San Diego or Catalina Island. The kelp forests are majestic, but if you are wearing a wetsuit, a significant portion of your mental energy is spent managing the “seep”—that moment when icy Pacific water finds its way down your spine. By the second dive, you’re shivering, your air consumption is up, and you’re just not having as much fun.

At Cactus to Coral Scuba, we have the ultimate solution to the cold-water blues. It’s time to stop tolerating the shivers and start enjoying the water, regardless of the temperature. It’s time to earn your SDI Drysuit Specialty certification. Here is why diving dry will completely revolutionize your dive profile.

The Core Concept: Air vs. Water

To understand why drysuits are so effective, you need to understand a simple principle of physics: Water conducts heat away from your body 25 times faster than air.

A wetsuit works by trapping a thin layer of water against your skin, which your body warms up. It slows down the heat loss, but the heat loss is still constant. Eventually, you get cold.

A drysuit operates on a completely different premise. By using watertight neck and wrist seals, waterproof zippers, and integrated boots, the suit keeps you 100% dry. Instead of a layer of water, you are surrounded by a layer of air. Air is a phenomenal insulator. A drysuit holds the water at bay, while your choice of quality undergarments traps your body heat. You are essentially diving inside your own cozy, customizable thermos.

Why Get Certified? The Benefits of Diving Dry

1. Total Comfort, Total Warmth

The most immediate and obvious benefit is comfort. If you are warm, you are relaxed. When you are relaxed, your heart rate is lower, and your Surface Air Consumption (SAC) rate improves. We have seen divers instantly add 10 to 15 minutes to their bottom time simply because they weren’t wasting energy shivering. Better yet, between dives, you don’t have to peel off a soggy, cold wetsuit. You just zip down, walk around, and enjoy your surface interval in your cozy thermal undergarments.

2. Extend Your Local Dive Season

Lake Pleasant is a dynamic dive site. While it gets warm in the summer, the best visibility often occurs in the colder winter and early spring months. With a drysuit, “off-season” is a foreign concept. You can enjoy local shore diving or skills practice in January and February without even a hint of the chills. It turns scuba from a seasonal hobby into a year-round passion.

3. Unlock World-Class Destinations

Some of the most spectacular diving on Earth requires robust thermal protection. If you want to see the giant Pacific Octopus in British Columbia, explore the incredible shipwrecks of the Great Lakes, or giant-stride between continents in the crystal-clear glacial water of Silfra in Iceland, a drysuit is mandatory. Earning your certification at Cactus to Coral Scuba prepares you for these adventures long before you book the plane ticket.

4. Better Buoyancy and Trim Mastery

Mastering a drysuit adds a new variable to your buoyancy toolkit. Because you are adding air to the suit (to prevent “squeeze” as you descend) as well as your BCD, you must learn new techniques for venting air on the ascent. This challenge actually forces you to become a much better, more conscious diver. Divers who are expert drysuit users almost always have impeccable horizontal trim and motionless buoyancy control.

Why You Need the Specialty Course (The Skills Update)

You cannot simply buy a drysuit and jump in the water. Managing a new air bubble around your entire body introduces new risks, specifically the uncontrolled “feet-first” ascent.

In the SDI Drysuit Specialty course at Cactus to Coral Scuba, we focus intensely on safety skills in a controlled pool environment before ever heading to open water:

• Inflating and Venting: Learning how to add just enough air to stay warm and prevent squeeze, and how to position your body to automatically vent air from the shoulder dump valve during ascent.
• Recovering from an Inversion: Practicing the vital “tuck and roll” maneuver to recover if air gets trapped in your boots, sending your feet to the surface.
• Emergency Ditch: What to do if the suit inflator sticks or the suit floods (spoiler: it’s not an emergency; it’s just cold!).

Start Diving Dry with Cactus to Coral Scuba

A drysuit is a major investment, but the specialty course is the perfect low-risk entry point. It allows you to use the shop’s rental suits, learn the proper procedures, and feel the magic of staying warm in any water temperature before you commit to purchasing your own gear.

Don’t let the calendar dictate when you can dive. Stop by Cactus to Coral Scuba today to get fitted for a drysuit and sign up for our next Drysuit Specialty class. Let’s swap the heat for the shivers, and the off-season for adventure!