One of two Guinness breweries in the US! Great place to have a drink, they have a large indoor/outdoor space to sit and relax. Tours are offered as well.
We've been here several times and always have so much fun! If you make your way into the city, check out Fell's Point and the rest of the Inner Harbor.
Let us know if you're interested in going to the Aquarium, we are able to get a number of discounted tickets.