Dante and his wife are both so lovely. We organised a tour with just a days notice (we were staying at the hostel next door - also really nice people). Dante speaks very good English but was happy to help us practice a little Spanish. We really enjoyed our day, it was a very personal experience tailored to what we wanted to see. This agency is very professional and reasonably priced, we wished we had booked our Galapagos tour through them (we found it would have been a lot cheaper through him than the company we booked two months ahead with!). This is a company you can be comfortable with and trust (not always an easy find in SA where we found we had to be careful to make sure we weren't ripped off, or sent off without the promised english speaking guide...).