We found a Rita's Water Ice in Santa Monica.
I have heard all about it from the Restubog family over the years, but seeing as I always visit Philadelphia in winter, Rita's is always closed! Now they've got one in California (which Ruby was VERY excited to hear!).
Mine was a layer of cheesecake-flavoured water ice (like gelato) in the middle, with layers of chocolate and vanilla "twisted" frozen custard (just like ice cream, if you've never tried it before, only creamier and somehow more delicious).