My girlfriend and I used Tierra Tours in Granada to arrange for two different trips. First we went kayaking in the isletas, then we toured Mombacho and did the canopy zip line. Both days were quite fun and as far as logistics go Tierra Tours are excellent. Transportation and all arrangements happened mostly on time and everything was generally well run.
We especially enjoyed the kayak trip, but be prepared for a workout! The only small negative to our trip was that our guide did not speak any English (our Spanish is poor), but it was last minute booking and the kayak company was not Tierra Tours directly. That said it did not detract much from our experience and we greatly enjoyed the day.
For Mombacho our guide was Gustavo and he was FANTASTIC! We loved having him as our guide. He was friendly, animated, smart, funny, and enthusiastic. Really, really great. In retrospect we wish we chose to do the longer Mombacho hike but that was our own choosing. The zip line canopy tour was fun and all, but I think we may have enjoyed ourselves even more spending more time exploring Mombacho with Gustavo.
Overall I highly recommend Tierra Tours if you are looking for a guide service in Granada. For both days it was just my girlfriend and I with our guide so it did not feel "touristy" like if we had been in a large group. We had such a good experience that we also booked a guide in Leon through Tierra Tours' office there.
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