For Colorado citizens, partaking in the pot culture is easy: They can buy up to an ounce per visit and smoke it in the privacy of their own homes. Visitors, however, must hop over several hurdles, including a limit on quantity (a quarter-ounce) and restrictions on consumption as dictated by federal and state laws. At the top of the “no smoking allowed” list: federal land, including national parks, forests, trails, historic sites and ski mountains; establishments covered by the Clean Indoor Air Act, such as bars, hotels, restaurants and entertainment venues; and outdoor public spaces. Dispensaries also post very clear signs about what not to do on their premises. And you can’t take any leftovers home.

“You need to come educated about local laws,” said Tony Verzura, co-founder of RiverRock dispensary in Denver, “and prepared.”

Coming to the rescue, with guiding lighters in hand, are tour operators and entrepreneurs. The experts, many longtime smokers themselves, are providing chaperoned excursions to dispensaries and growers, much-needed guidance (“Take a puff or two and wait 15 to 20 minutes,” Vee recommended) and, most crucial, a safe place where guests can cannibust out without retribution.

Read more: A new Rocky Mountain high: Colorado open for cannabis tourism | Washington Post