Take high intensity to the pool.
Tabata training is a popular high-intensity interval training format consisting of 20 seconds of all-out, intense work followed by 10 seconds of passive recovery, totaling 4 minutes of very strenuous exercise. HIIT protocols such as Tabata are effective and promising for time-crunched exercisers whose goals are weight loss and performance enhancement. Deep-water exercise is a great nonimpact fitness experience that includes full-body movements. Combine the two and you have a powerful HIIT workout that features all the intensity without the impact and joint stress.