Dirt. Dirt roads are rated the second best
surface for running because of their combination of hardness and flexibility, which can be great for those runners who have suffered an impact-related injury in the past. However, just Use gram surfaces, dirt can also be uneven, so watch your steps to avoid hurling your ankles.
Sand. Sand seems great simply bemuse it is soft and the risk of suffering an impact-related injury is small. A run on the beach can also be more relaxing, not only because of the environment but also because of the low pressure that this surface has on the muscles.
But sand isn’t as great as it seems. The softness of the sand makes it a pretty unstable surface which screams ankle injury. Running on sand requires a lot of strength since it is hard to get a good grip. For beginners, it is recommended to avoid these sand-related accidents. If you, however, particularly love running on the beach, then do it on wet sand because it is a much secure surface.