Near Swan Dive:
Wu-Ron’s is a great, unheralded ramen place
Portland Beef and Cheese company, hot dogs and pastrami sandwiches and stuff only open for lunch M-F, but damn good
Hat Yai for coriander fried chicken and rich curries, not sure I’d want to eat here before a long night of drinking but it’s tasty!
Wayfinder brewing if you want the typical Portland craft brewery experience- yuppie vibes but I think their beer and food is pretty good
General advice
Portland’s greatest asset is our wealth of record stores, bookstores, and neighborhood movie theaters. Specific recommendations have already been covered in other threads and last year’s program, but try to hit up several if you’ve got the time.
Food carts are rarely good. There are a few standouts, but typically overpriced and mediocre food.
If there’s a clear day you gotta check out the views. The OHSU aerial tram is like $8 now but it’s a good quick way to get some nice scenery. Washington Park and Pittock Mansion are nice too but will be crowded.
The streetcar that runs by the Swan Dive is slow and infrequent, don't rely on this for getting anywhere, in most cases you're better off walking.