It’s possible to buy magic mushrooms or paddos in Amsterdam, it’s legal.
They are hallucinogenic, apparently quite trippy.
But for some people the trippiness goes just too far.
There have been a few cases recently of tourists trying paddos and getting a little crazy. The most recent one was a Danish student who went crazy driving around the Zeeburg campsite, terrifying other campers.
I’m no expert in this stuff, but friends who are tell me that the safest thing to do is to go to real Smartshops, rather than just buying paddos in tourist shops.
If you’re into this stuff, please be smart, don’t ruin your holiday.