Go to the coast
You know what else is right near Portland? The Oregon coast. It might not have the beaches of California, but it has beautiful beaches nevertheless, and some scenic coastal towns and beach houses. Rent one for the night, or just camp on the beach together.
Get a fancy prix fixe dinner
Perfect for your one-month, one-year, or 10-year anniversary, Portland is rife with fancy restaurants with chef’s tasting menus. Try a luxurious dinner at a place like Coquine, Beast, LangBaan (if you can get in), Le Pigeon, Roe, or the inimitable Paley’s Place.
Brunch with the parents
If they’re still in touch with their parents, it’s probably time you meet them. Brunch is the safest way to do this. Our city is obsessed with it, they’ll find something they like on the menu, and you can still find a drink if you need it. The Hazel Room, Broder, Tasty n Sons, Lechon, The Country Cat, or any one of the other 100-plus brunch restaurants in Portland will do just fine.