Spec Ops Swimming Tests: Learning the CSS to get TO and THROUGH Spec Ops Selection - https://www.stewsmithfitness.com/blogs/news/css-help-series-quick-fix-to-crushing-the-swim

The RULES: First, the 500yd Navy Physical Screening Test (PST) allows for the elementary side stroke, the breaststroke, or the modified side stroke nick-named the Combat Swimmer Stroke. The general theme is that these strokes must be "underwater recovery strokes." 

However, beyond the PST (getting accepted into training) will require the addition of swimming and SCUBA diving with fins mostly in open water. 99% of your swimming will be done in fins once you are accepted into the training. So, if you choose to use breaststroke as your PST stroke, you will also need to learn the side stroke with fins to succeed beyond Day 1 of training/selection and get THROUGH the training. 

The Combat Side Stroke is about conserving energy and maintaining a low profile in the water. Avoid too many kicks, popping up to breathe, and not gliding long enough to maximize your efficiency. Pay attention to your body position and ensure your movements are streamlined and efficient. Count how many strokes it takes to get across the pool (note distance). Typically, we try to get our folks down to 4-5 strokes per 25-yard pool at a yard-per-second pace. See if you need help with any of the following steps of the CSS in the CSS HELP article series:

The CSS HELP Series: Breakdown of the Stroke (all links to below found here: https://www.stewsmithfitness.com/blogs/news/css-help-series-quick-fix-to-crushing-the-swim )

CSS Help: Fix Your Kick

CSS Help: To Add Flutter kicks or Not? 

CSS Help: Fix Your Arm Pulls (top & bottom)

CSS Help: Fix Your Glide

CSS Help: Fix Your CSS Sequence of the Stroke - Pull - Breathe - Kick - Glide

CSS Debate: To Pullout or Not Pullout (Breaststroke Pullout Issues)

Master the Stroke (at 50yd in 50 secs or faster) THEN Get Into Swimming Shape: Spend time in the water, swimming, jumping in, and treading. The more comfortable you are in the water, the more confident you'll feel when executing the Combat Side Stroke during the military swim test. Remember, swimming proficiency takes time, watching videos, practicing, and getting feedback to correct incorrect techniques. THEN you have to get in swimming shape. This will add to your training time, but you can do it quickly if you put in the time 4-5 times a week.

Check out https://www.stewsmithfitness.com for more articles, programs, and coaching on all things tactical fitness.