Getting ticket was harder than it should have been - no online booking option, email reservation not accepted and phone reservation attempt unsuccessful. Even Sutoris salt mine hotel and tourist office could not sell us a ticket.
But not giving up paid off. We walked up in morning to secure our tickets and space on the 3pm English tour. You can turn up 20mins before tour but if others beat you to it, you could miss out on an amazing tour.
Jacob was our guide - informative, interactive, adjusting to our needs and characters. Not to be missed site with not to be missed english speaking guide. Well worth the money.