I've been to San Antonio tens of times and never knew this place existed. It's really off the touristy river walk path. If you are down in the heart of downtown I'm not sure I'd come all the way here

Great if you're already in the area, but you can't make an afternoon of this. Just looks like a cave feature at a zoo. We got there and had a "this is all of it?" moment.

The Grotto is a cave-like sculpture designed by local San Antonio artist Carlos Cortes along the Riverwalk. It's worth a stop and a picture if you're on this part of the Riverwalk (between the Pearl a