In the period 2013-2018, the Ixtlan Project became the best-funded and largest-scale underwater cave research project conducted in Mexico in recent decades. The site of the entrance to the Ixtlan Cave was purchased for the study along with a compressor station and exploration base premises, and in five years were conducted more than 2,600 research dives leading to more than 20 km surveyed passages. As a result, Ixtlan became the longest single entrance underwater cave in the world and unique scientific discoveries were made and documented.The ATI Cave Exploration Team during the Ixtlan Exploration Project in Mexico:
- Ivo Kalushev – team leader. Research speleologist with over 30 years of professional career and dozens of discovered and explored cave systems on the European and American continents, speleology instructor (NSS, EMKGI), cave rescue and technical cave diving instructor, owner of the cave diving school DivingMexico.
- Deyan Iliev – technical cave diving instructor (IANTD), speleologist.
- Nikolai Zlatkov – technical cave diver (IANTD), speleology instructor (EMKGI), leader of the Tenebris Underground Research Team
- Plamen Statev – diving instructor (PADI), technical cave diver (IANTD), speleolodist.
- Nevena Staeva – cave diver (IANTD) and speleolodist.
- Ivailo Valentinov – diver and speleologist.
- Peter Kolev – diver and speleologist.