The 102-year old Bay to Breakers 12K is one of the world’s largest and oldest footraces held annually in San Francisco. The name reflects the traditional course, which takes tens of thousands of participants from the northeast end of the downtown area near The Embarcadero (the "bay" side of the city) to the west end of the city and the "breakers" of Ocean Beach. 
World-class athletes compete and “fun-loving” folks flood the streets clad in everything from outrageous costumes to birthday suits—earning Bay to Breakers a reputation as the Mardi Gras of the West. 
If you are one of the great athletes interested in running the race, register here>>
If you want to enjoy the spectacle and party, check out SF Weekly’s photo slideshow of the event and read these tips:
1. Don’t Dress Warm. 
It may be a little chilly in the morning, but, trust us, taking to the streets with thousands of people as temperatures start to rise mid-morning, and you’ll be stuck carrying your jacket all day long. 
2. Be Prepared For Nudity 
You may even be that guy or gal, but be prepared to see people in their birthday suits. 
3. Stay Hydrated
Water is your friend on a day like this, especially if you plan on drinking. 
4. Pace Yourself
It can be a long morning. Take your time to enjoy the full event. 
5. Wear A Costume
San Francisco loves to dress-up. Join the fun and come prepared.
6. Food
Speedway meadows in Golden Gate Park will be filled with pizza and other tasty treat vendors. There are also a ton of restaurants and cafes along the way. 
7. Transportation
Cabs will be difficult to find and public transit packed after the race. Plan ahead. 
8. Make Pit-stops
There are a slew of open house parties, bands, food vendors and other random happenings along the way. Don’t be shy. Stop and enjoy yourself. 
9. Be Respectful
It may be difficult to find a bathroom. You may bump into a police officer on a horse. You may really want to read the tattoo on that naked guy. Please, remain courteous and respectful throughout the event. 
10. Have A Blast
Go wild. Have fun. Enjoy yourself. 

The 102-year old Bay to Breakers 12K is one of the world’s largest and oldest footraces held annually in San Francisco. The name reflects the traditional course, which takes tens of thousands of participants from the northeast end of the downtown area near The Embarcadero (the "bay" side of the city) to the west end of the city and the "breakers" of Ocean Beach. 

World-class athletes compete and “fun-loving” folks flood the streets clad in everything from outrageous costumes to birthday suits—earning Bay to Breakers a reputation as the Mardi Gras of the West. 

If you are one of the great athletes interested in running the race, register here

If you want to enjoy the spectacle and party, check out SF Weekly’s photo slideshow of the event and read these tips:

1. Don’t Dress Warm. 

It may be a little chilly in the morning, but, trust us, taking to the streets with thousands of people as temperatures start to rise mid-morning, and you’ll be stuck carrying your jacket all day long. 

2. Be Prepared For Nudity 

You may even be that guy or gal, but be prepared to see people in their birthday suits. 

3. Stay Hydrated

Water is your friend on a day like this, especially if you plan on drinking.

4. Pace Yourself

It can be a long morning. Take your time to enjoy the full event. 

5. Wear A Costume

San Francisco loves to dress-up. Join the fun and come prepared.

6. Food

Speedway meadows in Golden Gate Park will be filled with pizza and other tasty treat vendors.
There are also a ton of restaurants and cafes along the way. 

7. Transportation

Cabs will be difficult to find and public transit packed after the race. Plan ahead. 

8. Make Pit-stops

There are a slew of open house parties, bands, food vendors and other random happenings along the way. Don’t be shy. Stop and enjoy yourself. 

9. Be Respectful

It may be difficult to find a bathroom. You may bump into a police officer on a horse. You may really want to read the tattoo on that naked guy. Please, remain courteous and respectful throughout the event. 

10. Have A Blast

Go wild. Have fun. Enjoy yourself.