This is an event to remember. Get your costume ready for Halloween weekend and come out for a fun run walk with the whole family. You will get your swag bag and lots of things to fill it with throughout the 3.1mile adventure around Lake Merritt. Each participant will receive a bag, adventure course, and a fall festival at the finish complete with candy and local food. And of course the costume contest where you can take home prizes! We can't give all the surprises away but here is just some of what you can expect.