Georgetown is known for its historical charm and stunning houses. Union Market/H Street has tons of good food. If you want to be near the water then check out the Wharf. But really, you'll never need to leave Dupont.
Hillwood is a great place to see some beautiful gardens and artifacts. It also tends to be less crowded than other museums in town.
These two parks have plenty of well-maintained trails in the middle of the city. You can even take Rock Creek trails all the way up to Maryland if you're feeling ambitious.
An underrated gem located in Northeast DC. In addition to plenty of native flowers, trees, and grasses, the arboretum offers one of the most stunning collections of Bonsai in the entire world.
Between the Nats (MLB), Wizards (NBA), Caps (NHL), Spirit (NWSL), United (MLS), and Georgetown (NCAA), April is a great time to visit one of the stadiums in DC.
Carter wanted to make this list way too long so Julia asked him to just pick a few. Casual: Thai Chef Street Food, Federalist Pig, Lucky Buns Sit-down: Anju, Astoria, Nina May Take-out: Chicken and Whiskey, Prego Again, Colada Coffee/Breakfast: Soleluna, Open City, Bagels Etc.