The Port of Los Angeles Lobster Festival is this weekend. It last three days (September 13, 14, and 15) and will feature music acts, and of course, Maine lobster mals for $20, which will come with coleslaw, potatoes, sweet bread, lemon wedges, and some sort of butter sauce for dipping.
Apparently, the festival was the 2009 winner of the Guinness World Record for the Most Seafood Served at an Outdoor Event. So there's that.
Tickets are $10 at the door. There's $1-off coupon on the website and kids under $12 are free.