Rinia or Rhinia, also known as Greater Delos, is an almost deserted island five miles SW of Mykonos. The anchorages around the island make a pleasant stop for people who avoid the noise of civilization. Rinia is a good overnight base prior to a visit by yacht to the archaeological site of Delos, from which it is separated by a 100 meter wide channel.

It is history is closely associated with that of Delos. Rinia is inhabited and only a few people from Mykonos keep some animals there.

The island has three anchorages, South Bay, Miso Bay and Skhino Bay, the first providing good shelter in the prevailing northerlies, the second in winds from N round to SE and the third in winds from W round to SE.