The third annual Dolphins Cycling Challenge takes place on the weekend of November 3rd and 4th.

There are a series of one-day, 30 mile rides, and a 170-mile two-day ride that will take cyclists to Palm Beach County.

The Dolphins Cycling Challenge has been very successful in raising money for cancer research. In two years, it has raised more than $1.6 million.

For more information about the different routes, and how to donate, click here.