Fortunately rising ocean levels are not minimizing Ocean Beach. And from this Sunday to March 31 you can legally revel in this windswept sandy expanse by lighting bonfires from 6am to 9:30pm. There are 15 fire rings available for you to use between stairwells 15 and 20. You only need a permit if you are planning to invite 25 people or more. Dress warm. Free.