All levels of walkers, joggers and runners welcome!! The event highlights running along the Mare Island waterfront and the historic shipyard. The 5K and 10K are entirely on the road. The Half Marathon includes several miles of groomed dirt trails. The 10K and the Half both have one climb that takes you up to the top of the Mare Island Preserve. Mermaids receive a stylish race shirt, finisher medal, necklace and post race food.