Experience authentic underground opal mine tours with expert local guides at Umoona Opal Mine, first worked in the 1920s. Our guided tours take you deep into original mine workings where you'll discover how opals are formed and mined in one of the world's most unique geological environments.
During the tour, your experienced guide will explain the fascinating process of opal formation, which takes millions of years as silica-rich water seeps through ancient rock formations. You'll see actual opal seams in the mine walls and learn to identify the different types of opal found in Coober Pedy, including precious light opal and the rare black opal.
The underground maintains a constant comfortable temperature of 22-24°C throughout the year, providing relief from the extreme desert temperatures above ground. This natural climate control is why many Coober Pedy residents choose to live underground in dugout homes.
Tours run three times daily at 10:00am, 2:00pm, and 4:00pm, with each tour lasting approximately 45 minutes. Our guides share captivating stories about the miners who worked these tunnels and the incredible opal discoveries made over the past century. The tour includes demonstrations of mining techniques both historical and modern.
Ticket prices are affordable for families: Adults $15.50, Children (5-15) $8.50, with family packages available from $36.00. The tour is suitable for all ages and fitness levels, with well-maintained walkways throughout the mine.