Our local community college each year has a number of programs for kids (some for kids as young as 10 years old: Kids on Campus – Cabrillo College Extension.
My son has outgrown these courses, and his 4 weeks of theater summer camp will make it difficult for him to register for any of the regular Cabrillo college courses. He did take one of them several years ago: a Lego Robotics course using Logo and the old Lego Dacta serial interface board. The same course appears to be offered this summer, with the same teacher. Neither he nor I can remember now whether he had one week or two of using the serial interface—he does not even remember programming in Logo for controlling Lego motors. I thought at the time that it was a pretty good course, and a nice variant on the mainly visual programming languages then available for Lego robotics. (He has used a couple of those languages and NQC for programming Lego robots, though now he does most of his robotics programming in C++ on the Arduino, with Python and PySerial to communicate from a laptop.)
So far as I know, UCSC has not attempted to do much with education for children, other than the Seymour Center at the Long Marine Lab and the COSMOS program for high schoolers (which I discussed in a blog post about improving the science fair participation by high schoolers). There are a lot of summer camps for kids on the UCSC campus, but most of these are from 3rd-party providers (like most campuses, they try to get money out of the dorms on a year-round basis).