PADI Open Water course
The PADI Open Water course is a certification programme which qualifies you to dive without direct supervision to a maximum depth of 18 metres.
It's the most popular diver programme in the world with instructors and facilities in 175 countries.
Virtually anyone in good health and reasonably fit can learn to dive. The only prerequisites are that you are over ten and can swim a few lengths of the pool.
Most people complete the pool and theory training at home - called the referral course - and finish off the 4 open water dives on a holiday abroad. You can also finish in the UK, if you prefer.
The only proviso is that you must complete the 4 open water dives within 6 months of your pool and theory training.