Scuba Diving: Calories and Health Benefits

A.J. Pike 

St. Croix - Scuba diving is not just a relaxing adventure beneath the waves - it’s also a surprisingly effective workout! While it might not feel as intense as a run or a gym session, the combination of water resistance, thermal regulation, and continuous movement burn more calories while scuba diving than you’d expect. 

When you dive, your body works harder to stay warm in cooler water temperatures. This thermoregulation increases your metabolism, causing you to burn calories even during a fun dive. Add to that the resistance of water itself, which requires an extra effort to swim and control your buoyancy, and you’ve got a full-body workout without realizing it. 

Scuba diving can burn anywhere between 300 to 700 calories per hour, depending on various factors. According to PADI research, a shore dive in temperate water burns approximately 600 calories per hour, while a leisurely boat dive in warm waters burns about 300 calories per hour. 

     The number of calories burned while scuba diving depends on several factors:

• Water temperature: Cooler water makes your body work harder to stay warm

• Dive conditions: Currents and waves demand more physical effort

• Diver’s size and fitness level: Larger individuals and those with less diving experience tend to burn more calories due to the extra energy needed for buoyancy control and movement.  

The 7 Health Benefits

• Cardiovascular Fitness - Every dive is essentially a cardio session. Swimming against water resistance strengthens your heart and improves circulation, but unlike the gym, you’re too busy watching marine life to notice your exercising.

• Natural Muscle Conditioning - The constant movement against water resistance works for multiple muscle groups simultaneously. Your core gets an excellent workout from maintaining proper trim, while your legs and arms strengthen naturally through finning and maneuvering.

• Stress Relief in Nature’s Own Meditation Chamber - The underwater environment creates a unique state of calm. The rhythmic breathing combined with the peaceful underwater setting reduces stress levels and anxiety. Many divers report feeling more relaxed after just one dive than after a week’s vacation on land.

• Respiratory System Enhancement - The controlled breathing techniques you learned in your Open Water course improves your lung capacity and respiratory efficiency with every dive. Many divers report better breathing patterns even when they’re not diving.

• Mental Clarity and Focus - Diving requires constant awareness of your surroundings, depth, and air consumption. This focused attention acts as a form of moving meditation, improving concentration and mental clarity. Plus, the problem solving skills required during diving can help keep your mind sharp.

• Joint-Friendly Exercise - The weightless environment of scuba diving makes it an ideal low-impact exercise option. The water’s buoyancy reduces stress on joints while still providing resistance for muscle strengthening.

• Immune System Boost - Regular exposure to different water temperatures and environments can help strengthen your immune system. Your body becomes more adaptable, potentially leading to better overall health resistance.

Health Benefit Tips

• Stay well-hydrated before and after your dives

• Limit alcohol consumption the days before your planned dives

• Maintain proper buoyancy control for an optimal workout

• Listen to your body and dive within your comfort zone

• Consider multiple dives per day (within safe limits) to maximize benefits.