Cannabis is as least harmful (no such thing as safe) a recreational drug as you are going to get.
The method of delivery matters of course... smoking ANYTHING is not healthy of course.
But with cannabis you can vapourise it or cook with it to achieve roughly the same effect.
It is effectively impossible to overdose on THC.
There are ZERO deaths in history that can be attributed directly to cannabis.
For every one automobile accident in which cannabis is a reported factor there are 100+ in which alcohol is a reported factor.
Blah blah blah blah blah more pro-cannabis rhetoric and statistics..... there I thought I would save myself, and you, some time and effort.
My point is, despite what your goverment tells you, IF you are going to use a drug recreationally, cannabis is one of if not the least harmful.
At least Canada has some sense when it comes to this subject.