Fun Downwind SUP Run- Avila Beach to Shell Beach We LOVE Downwind on the SUP! Here is a small video on what it looks like on the Avila Beach to Shell Beach SUP run which is around 5-6.5 miles depending on where you take out in Shell Beach. Preferably, this run likes a NW wind anything over 20mph. Remember to be SAFE out there and take the necessary safety equipment. We can't stress this enough. Always WEAR your lease and your PFD. Bring a cell phone and marine radio with [...]