The Santa Rosa Marathon is a well organized event. The swag is always fantastic and includes a finisher jacket and bottle of wine! The course support is great and the spectators are wonderful. The full marathon course goes through the De Loach vineyard and barrel tasting room which is amazing, and there are plenty of miles with beautiful grapevines along the road. I have done both the half marathon and full marathon distances and they are both great, but if you can do the full, do it as it is fast, flat and scenic.