The Iona Community runs three residential centres: Iona Abbey and the MacLeod Centre on the island of Iona, and Camas Tuath on Mull. Weeks at the centres often follow a programme related to the concerns of the Iona Community, and people are invited to come and share the life. A regular feature of a visit to Iona is a pilgrimage around the island which includes meditations on discipleship; when the pilgrims reach the disused marble quarry or the machair, the common ground where the crofters once grazed sheep, for example, they stop for reflection on work and faithfulness.