If you love art why not go a little deeper and go to an artist talk. They usually happen on Saturdays and are so insightful. I always learn something new and leave inspired. Definitely good for introverts as sometimes I get nervous to go to big art gallery openings that usually happen the night before.
This is a type of walk I do almost every day. Walk in one direction until you hit a stoplight. Then immediately turn and walk in the new direction until you hit a stoplight and repeat until you get back home.