Up in the hills of Berkeley, you will find a place with cows, sheep, rams, giant pigs, goats, chickens, ducks, rabbits, and more. Called the Little Farm, it's located in Tilden Park, and you can bring celery and lettuce to feed the animals. Believe us when we say that if you have kids, they'll love feeding the animals — and you will, too. An environmental education center next to the farm has exhibits, a store, and activities. Children enjoy sitting on the statue of a mountain lion in the middle of the center. Be sure to ask the person at the front desk to see the snakes and a tarantula. Learn about the wild animals and plants of the Wildcat Creek watershed in the Berkeley hills. Did we mention everything is free? You can easily spend half a day at the farm and museum, which houses native taxidermied animals, and break for lunch at the picnic tables, play on the play structure, and take a short hike to Jewel Lake, with its river otter and turtles. A short drive away is Lake Anza and the historic merry-go-round, as well as the Tilden Park steam train.