First off let me say that we had planned on going on a hike this past Saturday with a few friends that live close by when mother nature decided today was the one day it was going to RAIN all day. Im by no means complaining i very much enjoyed the Weather being a native New Yorker i still yearn for foul weather days from time to time lol.
As a back up we Found online there was a High school Robotics competition being held in Del Mar which was both indoors and about something interesting ROBOTS.
Bonus Each Team gave away collector pins and candy that you would get by visiting the Robot booths and checking out there hard work..... See how the candy is gone lol
Us and the Gang 
The Purpose of the Competition was to see which team could control the seesaws the longest by placing boxes on top to weigh them down. The whole thing was set up like a video game which made it super cool