Very professional and secure. Took my first certificates here and came back years later after diving at alot of different places and find Big Blue kept its very high standards and quality. Great equipment, great staff, very well trained instructors. I would say defenately one of the best places/companies to go diving with. It seems they found a balance, a way for newer staff to add value, blend in and bring in new fresh "strenghts" as well as keeping what is good already. A very sound and safe environment for practicing potentially high risk sports in other words. I would defenately recommend Big Blue to anybody. To the new beginner taking their first open water certificate and diving for the first time. For the more advanced diver that wants to fun dive and maybe get some more experience or a new certificate. It seems alot (ALOT!) of people also find it a very good place to become dive masters and even more advanced diving professionals as well. Alot of them trained me and I dove with a lot of them over the last few years. Everywhere I go diving and meet people that have been at Big Blue they tell me good things and I think in general they have a really really great reputation in the industry for beeing professional, trustworthy, very very serious about safety, keeping good equipment in good order etc. Also they mind the environment alot and do very much to clean up on land and in the waters. Go here. You will love it.