I went back to the Parque de la Cristiana with the hydrophones and hung them over the stone wall. The water is fairly calm here, though I did find a bubbly spot where water spurts out from a gap in the stones. Plus white noise machine from yesterday (interesting the juxtaposition of real and 'fake' water sounds).
Part Eleven: Two layers of white noise machine with digital delays. Three separate hydrophone recordings from inside Lake Chapala, at the Parque de la Cristiana.