If you are preparing for a training course that requires running on a soft-sand beach (or in a desert), you need to find ways to make running more difficult if you do not have that kind of access. Luckily, many ways exist to “make running harder” that do not require sand but can still offer solid preparation for both your lungs and your legs when you find yourself on the beach for the first time.  Countless Basic Underwater Demolition/SEAL (BUD/S) training candidates have used these methods to