This app was mentioned in 4 comments, with an average of 1.00 upvote
Barneys has a couple of shops most with Volcano's if vaping is your thang.
Otherwise I'd avoid the big strip places, normally shitty weed a PUSHY drinks sales ladies. I hate that, when I'm totally baked and I've got some bird pushing €5 bottles of coke on me...Bulldog is ALWAYS full of pissed stag weekenders who have got wankered on beer and think its a good idea to try a spliff. Dolphins always gets good write ups but I had a bad experiencing in there with pushy weed tender and drinks lady, didn't make me feel too comfortable :/
EDIT: I use this app on me blower to find places:
https://play.google.com/store/apps/details?id=com.codestare.smokeout
If you're interested in finding nearby coffeeshops you should download the 'Smoke out coffeeshop finder' app. It's available in the play store, I don't know if there's an apple version as well.
Edit: https://play.google.com/store/apps/details?id=com.codestare.smokeout
This one was updated in September, has anyone used it? https://play.google.com/store/apps/details?id=com.codestare.smokeout