Located in the northwest of County Clare, Ireland, is a karst-landscape region or alvar. It is one of the largest karst landscapes in Europe. The region measures approximately 250 square kilometres and is enclosed roughly within the circle made by the villages Ballyvaughan, Kinvara, Tubber, Corofin, Kilfenora and Lisdoonvarna. It is bounded by the Atlantic and Galway Bay on the west and north, respectively.
A small portion of the Burren has been designated as Burren National Park. It is one of only six National Parks in the Republic of Ireland and the smallest in size at 15 km².
The Green Trail is one of the nature walks available for visitors. This app guides visitors through the moderate grade (40 minute) walk, pointing out places of note and details of flora and fauna on the interactive map. The walk itself involves a 20m climb and covers a total distance of 2km.