The Santa Cruz exploration was great fun; we went to the highlands, and I had the best espresso I was to have on the whole trip on a farm. There were a few other hightlights! but I am an espresso addict, so I suggest to similar heads to buy the Galapagos coffee - beans only available, but you can take it home or to the mainland later. P.S. Don't think coffee is the ONLY great thing on Santa Cruz highlands, but you can read about the calderas; the farm; the lava tunnel elsewhere.