2 dives (certification required) are about $100 CAD
PADI Scuba Diver Certification
The PADI Scuba Diver Certification course is 2 days, and essentially provides the training for 'resort dives'. It's about 2/3 of the Open Water Diver Certification. The rest of the course can be completed (to give the Open Water Diver certification) during the next vacation, as long as it's within 12 months.
PADI Scuba Diver Certification is about $300 CAD