There's a fun run type thing for charity going on Sunday in Golden Gate Park, and in addition to marshmallow sweet stations along the route, participants get a mug of hot chocolate and chocolate fondue once they cross the finish line.

It's called the AllState Hot Chocolate 15k/5k, and it began in Chicago in 2008, with the first one in San Francisco in 2014. This race has gained in popularity, and it's now run in 25 cities in the U.S. and Mexico between the fall and spring. There are something like 15,000 5k races being run around the country every year, so gimmicks like this help drive participation. And in this case, it's a run for a good cause: the Make-A-Wish Foundation.

Many participants from previous years have praised the race on Yelp for being well organized with a fun finish. (You'd better like fondue!) And instead of a medal, participants get a metallic-wrapped chocolate bar emblazoned with the race year and location.

For this run there is a 5k (about 3 miles) and a 15k (9.3 miles) option, and you can see the routes below. The 5k starts at 7:20 a.m. and the 15k starts at 8:15 a.m., and both finish behind the deYoung Museum. The 5k stays within the park while the longer race route takes a lap down the Great Highway.

You can still register for the run, and there's an expo at the South San Francisco Conference Center (255 S. Airport Blvd) today and tomorrow where participants can pick up packets, chocolate samples, and race bibs. There is no same-day registration or packet pickup, so anyone participating has to get down to the expo on Friday or Saturday.