Boats leave in the morning to Inis Mor and Inis Oir, and return in the late afternoon. Inis Mor is famous for its spectacular ring forts such as Dun Aengus. Bikes can be hired on the island, making it easy to see all of the sites in a day. Inis Oir is a smaller island that offers glimpses into traditional island life. Inquiries as to sailings should be made the night before, as tides and weather can affect sailing times and days. Both companies also operate guided boat trips along the Cliffs. For those afriad of heights, this may be a more viable option in experiencing the sheer drop of the Cliffs of Moher. The many bird colonies that nest along the cliffs can also be spotted from the water.