Open Water Certification I did two dives with SCL to get my Open Water Certification. I couldn''t have asked for a better experience! The trips are limited to small groups so that you''re well-supervised and safe the whole time. The staff are friendly, skilled and fun. My instructor Ahmed was a pleasure to work with and I felt that I was in good hands the entire time. I''d definitely recommend this company for anyone looking to go diving in Langkawi!