I passed the crash course intensive course in no time, if your in a hurry then this is the diving course for you"

First of all it might be helpful for you to know what is generally meant by these terms:

Normal - This is usually around 2 hours per week, in one lesson. The course usually lasting 2-4 months.

Semi-intensive - This means around 4-8 hours per week, with a course being completed in approximately 1-2 months.

Intensive - This is around 10-24 hours per week, with a course being completed in 1-3 weeks.

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