Rhenia is the uninhabited island just beside sacred Delos, near Mykonos, with four solitary sandy beaches and dazzling emerald-to-turquoise water, visited on day cruises from Mykonos for swimming, snorkelling and total escape from the crowds. This guide covers the island, the beaches, the cruises, what to expect and practical tips.
Rhenia is the highlight of many boat trips in the Mykonos travel guide, often paired with a Delos visit. The sections below cover it in full.
What is Rhenia island?
Rhenia is an uninhabited island just west of Mykonos, beside the sacred island of Delos and separated from it by a narrow channel. About four times the size of Delos, it has four quiet sandy beaches in protected coves and spectacular emerald-to-turquoise water, making it a pristine, crowd-free escape reached only by boat.
Rhenia is a beautiful, uninhabited island lying just to the west of Mykonos, immediately beside the famous archaeological island of Delos, from which it is separated only by a narrow channel. It is roughly four times as large as the neighbouring sacred islet of Delos, yet it has no permanent population, no development and no roads, which gives it a wonderfully unspoilt, peaceful character. Its great draw is its scenery and water: Rhenia has four solitary sandy beaches resting in sheltered, protected coves, fronted by spectacularly clear water that ranges in colour from stunning emerald green to brilliant turquoise blue, often compared to a tropical paradise. Because it can only be reached by boat and is uninhabited, it remains gloriously quiet and pristine, a favourite anchorage for yachts and a highlight of cruises from Mykonos. For a day of swimming, snorkelling and total escape in raw natural beauty, Rhenia is hard to beat, set out alongside the guide to Delos. Its beaches are idyllic.
What are the beaches of Rhenia like?
Rhenia has four solitary sandy beaches, named Glyfada, Stena, Lia and Ambelia, set in protected coves with crystal-clear emerald and turquoise water. Undeveloped and crowd-free, they are perfect for swimming and snorkelling in calm, sheltered bays, offering the kind of pristine, secluded beach experience rarely found on busier islands.
The beaches are the heart of Rhenia’s appeal, and they are idyllic. The island has four lonely sandy beaches, named Glyfada, Stena, Lia and Ambelia, each resting in its own protected cove sheltered from the wind and waves. Their sand is soft and golden, and the water that laps them is extraordinarily clear and calm, shifting through shades of emerald green and turquoise blue that make them look almost tropical, ideal for swimming, wading and snorkelling over the clean seabed. Because Rhenia is uninhabited and undeveloped, these beaches have no clubs, bars, sunbeds or crowds, just nature and the sea, so a day here feels like having a slice of pristine Aegean paradise to yourself, a striking contrast to the busy, organised beaches of Mykonos. Cruises anchor in one of these secluded bays so visitors can enjoy the privacy of a white beach and crystal water without crowds. For those seeking peace, natural beauty and superb swimming, Rhenia’s coves are unforgettable, set out alongside the guides to the beaches and a sunset cruise. Cruises are the way to visit.
How do you visit Rhenia from Mykonos?
You visit Rhenia by boat cruise from Mykonos, usually departing from Tourlos Marina or the Old Port, with most trips combining Rhenia with a guided visit to neighbouring Delos. Cruises typically last around 6 to 7 hours, anchoring at Rhenia for swimming and snorkelling, with lunch and drinks served on board.
Because Rhenia is uninhabited and reachable only by sea, you visit it on an organised boat cruise from Mykonos, and these trips are easy to book. Most cruises depart from Tourlos Marina near the New Port or from the Old Port in Mykonos Town, and the great majority combine Rhenia with a stop at neighbouring Delos, so you get both the swimming paradise of Rhenia and the remarkable ancient ruins of Delos in one outing. A typical trip lasts around 6 to 7 hours in total, sailing out to the islands, allowing time for a guided walk among the Delos ruins, and then anchoring in one of Rhenia’s sheltered coves for a good stretch of swimming, snorkelling and relaxing on the beach. A traditional Mykonian lunch with drinks is usually served on board, adding to the relaxed, enjoyable atmosphere. Cruises come in shared, semi-private and private formats on catamarans, yachts and traditional boats, so there is an option for every group and budget, set out alongside the guides to a Delos tour and boat tours. Knowing what to expect helps.
What can you expect on a Rhenia cruise?
On a Rhenia cruise you can expect a relaxed day of sailing, swimming and snorkelling in crystal-clear coves, time to explore the ancient ruins of Delos with a guide, and lunch and drinks on board. The mood is laid-back and scenic, suiting couples, families and groups wanting nature, history and sea.
A Rhenia cruise offers a wonderfully varied and relaxed day on the water. After boarding in Mykonos, you sail across to the islands, and most trips begin with a stop at Delos, where you can join a guided walk through one of Greece’s most important archaeological sites, the mythical birthplace of Apollo, before the real escape begins. The boat then anchors in one of Rhenia’s protected, crystal-clear coves, where you have generous time to swim in the emerald and turquoise water, snorkel over the clean seabed, lie on the quiet white sand surrounded by raw nature, or simply relax on deck. A traditional Mykonian lunch with drinks is typically served on board, and the overall atmosphere is laid-back, scenic and sociable. This combination of history at Delos and a swimming paradise at Rhenia, with food and relaxation, makes the cruise suit couples, families and groups alike, and a refreshing change from a beach day on Mykonos, set out alongside the guide to things to do. A little preparation helps.
What should you bring to Rhenia?
For a Rhenia cruise, bring a swimsuit, beach towel, sun hat, sunglasses, sandals for the walk ashore and plenty of sunscreen, as the island is undeveloped with no shade or facilities. Most cruises provide lunch, drinks and snorkelling gear, so you mainly need swimming and sun essentials.
Because Rhenia is uninhabited and undeveloped, a little preparation ensures a comfortable cruise. Bring a swimsuit so you can make the most of the crystal-clear coves, a beach towel for drying off and lying on the sand, and strong sun protection, as you will be exposed to the sun on the water and the open beach: high-factor sunscreen, sunglasses and a sun hat are essential. Pack flip-flops or comfortable shoes for the stroll on the island and, if your trip includes Delos, for walking the ancient ruins, where closed shoes are better for the uneven stones. Since Rhenia has no shops, bars, shade or facilities of any kind, you cannot buy anything there, so rely on what the cruise provides; helpfully, most cruises include a lunch, drinks and snorkelling equipment, so you generally only need your swimming and sun essentials plus perhaps a little cash for tips or extras. A camera or phone is worth bringing for the stunning water and scenery. With these basics, you are set for a perfect day, set out alongside the guide to Mykonos on a budget. Timing improves the trip.
When is the best time for a Rhenia cruise?
The best time for a Rhenia cruise is the shoulder season of May, June, September and October and the calm days of summer, when the sea is settled and the water at its most beautiful. Choose a calm, less windy day, as the strong meltemi wind can make the sea rough and affect sailings.
Timing a Rhenia cruise well makes for a calmer, more beautiful day. The cruises run through the main season from roughly April or May to October, and the shoulder months of May, June, September and early October are especially lovely, offering warm but comfortable weather, settled seas, gorgeous light on the water and fewer crowds, while the warm summer days of July and August are also wonderful if busier. The key factor on any day is the wind: Mykonos and the surrounding waters are exposed to the strong meltemi wind in summer, which can make the sea rough and the crossing bumpy, and on very windy days trips may be affected or the calmer coves favoured, so choosing a calmer, less windy day greatly improves the experience and the swimming. Booking ahead in peak season is wise, as popular cruises fill up. Picking a calm day in the shoulder season rewards you with serene, crystal-clear water and a peaceful island to yourself, set out alongside the guides to when to visit and Mykonos weather. The questions below cover the points travellers ask most.
Why visit Rhenia island?
You visit Rhenia for its pristine, uninhabited beauty: four quiet sandy beaches in protected coves with dazzling emerald and turquoise water, ideal for swimming and snorkelling far from the crowds, usually combined with the ancient ruins of neighbouring Delos. It is the perfect escape into nature and history from busy Mykonos.
Rhenia offers something increasingly rare and special, which is exactly why it is worth the boat trip from Mykonos. On an island as busy and glamorous as Mykonos, with its crowded beaches and beach clubs, Rhenia is the opposite: an uninhabited, undeveloped island where four solitary sandy beaches rest in sheltered coves of astonishingly clear, emerald-to-turquoise water, with no clubs, no crowds and nothing but raw natural beauty. A day here means swimming and snorkelling in pristine, calm water, lying on quiet white sand and soaking up the peace, a genuine escape that feels like having a slice of paradise to yourself. Because most cruises pair Rhenia with a stop at neighbouring Delos, the trip also delivers culture and history, letting you walk among the remarkable ancient ruins of one of Greece’s most sacred sites before relaxing in the coves, so you get both the mind and the body satisfied in one outing. Add the easy half-day format, the lunch and drinks on board and the scenic sail, and Rhenia becomes one of the most rewarding things to do from Mykonos, ideal for couples, families and anyone wanting nature and tranquillity, set out alongside the guides to a Delos tour and things to do. Its pristine coves are unforgettable.
Frequently Asked Questions
What is Rhenia island?
Rhenia is an uninhabited island just west of Mykonos, beside the sacred island of Delos. About four times the size of Delos, it has four quiet sandy beaches in protected coves and spectacular emerald-to-turquoise water, making it a pristine, crowd-free escape reached only by boat cruise.
How do you visit Rhenia from Mykonos?
You visit Rhenia by boat cruise from Mykonos, usually from Tourlos Marina or the Old Port, with most trips combining Rhenia with a guided visit to neighbouring Delos. Cruises typically last around 6 to 7 hours, anchoring at Rhenia for swimming and snorkelling, with lunch and drinks served on board.
Are there facilities on Rhenia island?
No, Rhenia is uninhabited and undeveloped, with no shops, bars, sunbeds, shade or facilities of any kind. Bring a swimsuit, towel, sun hat, sunglasses, flip-flops and plenty of sunscreen. Most cruises provide lunch, drinks and snorkelling gear, so you mainly need swimming and sun essentials.