With Referral Dives you can complete your certification if you have already finished the theoretical and pool practices parts. It is a two-day complementary course and includes: four dive immersions in the sea. A two-day program that includes four open water boat dives. Offering the diving certification, this experience was created for clients that have done the theory part (exams) and pool session, and need to finish their diving course on open waters under the supervision of a professional instructor.