The best -and the only- way to visit these stunning, totally isolated and secluded, gold-sanded coves with the emerald and turquoise waters and the absolute freedom vibe is by boat. Rhenia is a small islet just next to Mykonos and its beaches are exotic, unspoiled and jaw-dropping. An all-day cruise to this utterly breath-taking setting could be combined with a visit to the ancient island of Delos, one of Greece’s most important monuments and an UNESCO World Heritage site. So, in this case you get to see something historically unique and to dive in pristine, unspoiled and crystal-clear seas. Seems like a win-win situation to us!