I am a friend of Kristian's but not a member so I am using his account. You can email me if you want (luke.rogers@yale.edu) but I only check it maybe once a week. I have climbed in Potrero Chico in Mexico and it is a fantastic place. Single and multi- pitch bolted limestone in all grades from around 5 to 9 (swedish). 70 meter rope (or two 50s) and a helmet recommended. good camping, drinkable water (not all that common in mexico) and cheap food. Kind of far from the airport by cab but not too expensive. Let me know if you have specific questions.