Colonia is the Capital of Yap and the bustling town combines modern times with traditional ways. Most Yapese people today live in modern structures, but several villages have areas with typical meetinghouses and men’s houses. Many of these villages exhibit the famous stone money or ‘rai.’ Although the circular aragonite pieces were used on Yap, most of them actually came from Palau. In a bold undertaking, Yapese men traveled to Palau to quarry the heavy stones and then transport them on rafts or out-rigger canoes back to Yap over roughly 240 nautical miles of open water. The islands of Yap have been governed by various colonial powers. The German administration of the mid-1800s dug a channel through the main island to speed the delivery of produce between the north and south sides. This narrow channel is still used today. With close to 160 kilometers (100 miles) of encircling reef, blacktip, whitetip and grey sharks, along with massive manta rays are Yap’s main underwater attractions. The State of Yap designated the world’s first manta ray sanctuary in 2008.