Here are 5 easy to do stretches that will help you perform at your optimum while paddling on your stand up paddle board. They are all easy to do on the sand right before launching and will help you prevent injury as well.
1. Lat Stretch
2. Shoulder/Triceps Stretch
3. Hamstrings Stretch
4. IT Band Stretch
5. Figure 4 Stretch - (for piriformis)