Enriched air, also known as nitrox or EANx, contains less nitrogen than regular air. Breathing less nitrogen means you can enjoy longer dives and shorter surface intervals. No wonder Enriched Air Diver is the most popular specialty.
This Specialty course includes eLearning, certification and two dives with a rental dive computer.
 
 
Additional cost:
National park fee 200thb / day
Diving insurance 70thb