Sergio Velazquez

Was born in Mar del Plata (Argentina). He completed his first course in 1985, when training diver required long sessions in the water.
After six months of hard training, he passed his first PNA / FAAS diver certificate.
For years, every weekend, he explored new areas in his hometown where conditions were adverse.
There he formed his personality of a rigorous diver.
In 1991 after military service he began to work with his passion, he became a CMAS monitor.
With an interesting job proposal he decided to move to Brazil to become a PDIC Instructor, TDI Technical Instructor,
SDI, PADI, IANTD Cave Instructor & Technical Instructor Trainer.
He worked in different dive centers in Brazil and Spain.
He has been teaching divers and professionals for almost 30 years.

He currently lives in Malta where he teaches technical, cave, sidemount diving and instructor courses.


Carolina Wells

From Spain, she is IANTD EANx Open water Instructor and professional underwater photographer.
She manages all of Blackfins diving recreational courses, controls our social media presence and takes all of our underwater photos.
She has a great sense of responsibility when it comes to diving and tries to teach the courses depending on the students necessities. All while stressing the importance to protect the environment and oceans.