The PADI Scuba Diver certification is basically half on an Open water course. After the certification, it will allow you to dive anywhere in the world to a maximum depth of 12 meters and always supervised by a professional diver.
This PADI certification can be done in only 2 days.
Day 1 : Video and theory
Day 2 : Practise skills in the swimming pool and 2 dives in the afternoon