A lot of families spend the summer in La Jolla and need places for their kids to go. This little school is in the Bird Rock area and I would highly recommend it. Tap Fever offers tap, ballet, jazz, and other dance classes for kids and adults. My daughter is 4 and loves it.
While you will see quite a few local children in the classes, it is very easy to take drop in classes here. Just check the website for the schedule and call to make sure the class isn't normally crowded (this is rare). You can drop your child here and then grab a coffee or browse the shops on La Jolla Blvd. Classes are normally 45 minutes or so long.
It's a non profit center and you can tell that they are very passionate about what they are doing. There's no pressure, it's casual and fun. 5 stars, for sure.