Sushi Groove
There is a line out the door every day for this cafe-style seafood restaurant

Swan Oyster Depot - San Francisco

Obviously, we recommend the oysters. The menu of available oysters changes daily, and usually features four to six different types. If you’re not sure of which ones to try, the oyster shuckers will discuss with you to figure out what you like and make a recommendation (like a shellfish sommelier). If you are not a fan of oysters, don’t worry; there are also plenty of other delicious items offered by the Swan, such as seafood cocktails, chowders, stews, salads, and cracked crab.

Quick Facts:
Cuisine: Seafood
Hours: Mon-Sat 8am-5:30pm
Accepts Reservations? No

Cross Streets: California and Sacramento
Neighborhood: Nob Hill
Prices: Moderate

A landmark restaurant in San Francisco, this shellfish bar has been family owned for generations. Admittedly, it looks like a bit of a dive bar (no pun intended), but the food is very fresh, very good, and inexpensive. Top it off with friendly, outgoing service (often by the owners themselves), and you’ve got a winner.
Tip: Accepts cash or check only. Parking in the neighborhood can be difficult, and there is always a line during peak hours (11:30am-1:30pm, 6pm-7:30pm), so you may have a wait- but it’s worth it. Our favorite time to go is on a weekend afternoon (around 2 to 4pm) for a dozen on the half-shell and a beer.