We love fishing but don't get to go real fishing very often. My husband took my little guy and they had a ton of fun.
If real fishing isn't up your ally or if you don't currently have a license or fishing equipment don't feel like you have to go get it just give sock fishing a try! Sock fishing is inexpensive and and your kids will love it. All you need is some socks, a couple magnets, a stick and some string.
Put the magnets into the toe of the socks and lay them out on the floor behind something (we used a chair). Tie a ribbon/string to a stick and glue a magnet to the bottom and then fish away.