15/09/2026
**What if your Isla Mujeres trip is where you become a certified diver? 🤿**
ATIM offers SDI and TDI training for divers at different stages — from a first Open Water certification to advanced and specialized training.
For example:
**Open Water — starting at MXN $10,500**
Approximately three days.
**Open Water Referral — starting at MXN $6,400**
Approximately two days.
**Nitrox / EANx — starting at MXN $5,200**
Approximately one day.
Course duration is estimated, and certification is earned by meeting the required training standards.
👉 Explore training and certification:
https://adventuretoursisla.com/certifications.html
A complete path from first certification to professional, sidemount, cavern, cave, and technical development in Isla Mujeres and the Yucatán Peninsula.