In my last scuba-related post, I mentioned my goal to become certified as a scuba instructor. During that trip to San Carlos, Mexico, I got the second certification level I need: Advanced Open Water Diver (AOW). A few weeks later, I returned to San Carlos to complete the third certification: Rescue Diver. As I did for my Open Water and AOW certifications, I decided to do the Rescue Diver certification through my local dive shop in Tucson, Planet Scuba. They organize a trip to San Carlos at least once a month, and I love their owners and staff.