About Erik Rosenstein — Your Cave Diving Instructor in Playa del Carmen

GREETINGS! WELCOME TO MY WORLD!

I'm Erik Rosenstein, and I've been a cave and technical diving instructor for well over a decade, based in Playa del Carmen, Mexico.

Before diving became my career, I spent years in academia and as an environmental consultant, working in the private and public sectors across the US, Canada, and Australia — postgraduate degrees in both science and law. That background shaped how I teach: methodically, with an emphasis on actually understanding the why behind a procedure, not just memorizing the steps.

I've been diving since 1992, earned my Divemaster rating in 1996, and became an Open Water Instructor in 2007. I've been cave and technical diving since the early 2000s, and became a certified cave and technical diving instructor in 2012. I moved to TDI in 2014 and haven't looked back.

I run a tight operation, and I'm not going to apologize for it. If you're not ready to move to the next level, we don't move — full stop. I don't care how much you paid, how far you flew, or what certifications you're already carrying from somewhere else. Cave and technical diving doesn't forgive shortcuts, and neither do I. But if you're willing to put in the effort, I'll work just as hard to get you there.