The main points
- A half day here is a 5-hour speedboat run that covers Sykia Cave, Kleftiko Caves, two hidden gems, Agathia Beach, Akra Vani and Klima.[1]
- The 10-hour route adds Polyaigos, the Aegean's biggest uninhabited island, plus Sarakiniko, Glaronisia and more west coast beaches.[2][3][4][5]
- Half-day listings start lower, from US$125 for 5.5 hours, while the full-day Kleftiko and Polyaigos trip starts from US$185 for 10 hours.[2][6]
- Several listings are wheelchair accessible, including a 5-hour catamaran trip and a 9-hour small-group cruise.[7][8]
- The Milos sailing season runs May through October, and the sea around the island is 23-26°C (73-79°F) in July to September.[9][10]
- Top choice Kleftiko & Polyaigos Meals from US$185 Duration10 hours[2]StopsSarakiniko, Poliegos, Kleftiko Caves[2]Rating4.82 from 282 reviews[2]Guide languageEnglish[2]CancellationFree cancellation up to 24 hours[2] Check availability
- Half-Day Kleftiko Speedboat from US$155 Duration5 hours[1]StopsSykia Cave, Kleftiko Caves, Agathia[1]Rating4.93 from 648 reviews[1]Guide languageEnglish[1]CancellationFree cancellation up to 24 hours[1] See this tour
- Milos & Polyaigos Sailboat from US$144 Duration10 hours[11]StopsPoliegos, Kleftiko Caves, Sykia[11]Rating4.92 from 1,913 reviews[11]Guide languageGreek, English[11]CancellationFree cancellation up to 24 hours[11] See this tour
Glaronisia are three small uninhabited volcanic islets off the north coast of Milos. Their name means Seagull Islands, and they are famous for striking hexagonal basalt columns that rise straight from the deep blue sea.
Half day or full day: our verdict
Check before booking
- Decide whether you want to be back on land by early afternoon or out until evening
- Reserve now and pay later is offered, with free cancellation up to 24 hours in advance[2]
- Starting times are shown when you check availability, so read them before you commit
- Compare the price against the hours at sea, not just the number of swim stops
On the water
- Sun cream, a hat, a light long-sleeved layer and a dry bag for the phone
- Swim shoes help on rocky swim stops, and the water is warmest late in the summer
- Small-group boats fill up, so ask the crew where the shade sits on deck
- Take any seasickness tablet before you board, not after the swell starts
What a half day actually covers
Half-day trips out of Milos are built around one stretch of coast: west to Kleftiko, a swim under the white stacks, and a look into Sikia Cave, whose roof collapsed long ago and left an open top showing the blue Aegean sky.[12] One speedboat listing does that circuit in 5 hours, calling at Sykia Cave, Kleftiko Caves, two hidden gems, Agathia Beach, Akra Vani and Klima.[1] A catamaran alternative runs 5 hours from US$177[7], a morning catamaran trip takes 6 hours from US$179[13], and longer half days stretch to 5.5 - 7 hours from US$150[14] or 7 hours from US$167.[15]
Boat tours around Milos start from Adamantas, in the centre of the island[16], and a half day ends with you back at the quay while there is still light to spare. Kleftiko has a history as a pirate hideout, and its name means stolen in Greek, taken from the crews who hid supplies in its caves and coves.[17] A half day is long enough to see the arches and the stacks properly, and to take the swim the trip is really about. Shorter trips also mean less time in the sun and less time on a hard bench, which matters on a hot day. What you give up is the second half of the island.
What the extra hours buy
A full day is where the map opens up. The Kleftiko and Polyaigos boat tour runs 10 hours from US$185, calling at Klima, Arkoudes, Sarakiniko Beach, Glaronisia, Pollonia, Poliegos, Thiorichia Beach, Gerakas Beach, Kleftiko Caves, Sykia Cave and Vani Beach.[2] Other full days keep a similar clock: 10 hours from US$144 with 1,913 reviews[11], 10 hours from US$190[18], 10 hours from US$242[19] and 10 hours from US$275.[20] Sailboat versions run 9.5 hours from US$155[21] and 9.5 hours from US$230.[22]
The extra hours go into the stops. Polyaigos is the Aegean Sea's biggest uninhabited island, and the longer routes give it real time.[3] Glaronisia is a group of three small uninhabited volcanic islets off the north coast, named for seagulls and known for hexagonal basalt columns that rise straight out of the sea.[5] Sarakiniko, the most well-known shore on Milos, sits about five kilometres from Plaka and looks very different from the water.[4] Klima, roughly five kilometres from the port of Adamas, is the village of multi-coloured fishing houses near the end of the loop.[23]
White rock stacks and arches off Kleftiko, the stop every boat builds its day around.
Which one suits your schedule
Milos's sailing season runs from late spring through early autumn, specifically May through October.[9] Reported full-day boat trips range from 6-8 hours long and can even go up to 12 depending on the sea conditions.[24] A half day puts you back at Adamantas with the afternoon free for Plaka, a south coast beach or a slow dinner.
The booking terms make the decision cheaper than it sounds. The listings let you reserve now and pay later, and free cancellation applies up to 24 hours in advance for a full refund.[2] Starting times are shown when you check availability, so you can line a trip up against a ferry, a flight or a late evening.[1] Both formats leave from the same harbour at Adamantas; the choice really is about hours.[16] If your stay on Milos is short, a half day protects the other half of a precious day. With a week on the island, the full day is the one that also shows you Polyaigos.
Motor boat, sailing boat or private
The boat matters as much as the length. A speedboat reaches Kleftiko and back in 5 hours from US$155.[1] A sailing boat moves at a gentler pace, and the full-day sailboat listing runs 10 hours from US$144.[11] A traditional boat version stretches between 6 and 9 hours from US$150[25], and a semi-private sailing trip to Kleftiko runs 8 hours from US$150.[26]
If you want the boat to yourself, there are private and self-drive options. A self-driving boat tour to Kleftiko needs no licence and runs 4 - 8 hours from US$260.[27] A private half-day morning cruise to Kleftiko and Sykia Cave takes 6.5 hours from US$691.[28] A private yacht tour covering Kleftiko, Sarakiniko and Poliegos runs 5 - 8 hours from US$1784.[29] Small-group trips keep the numbers down: a Milos highlights sailboat cruise is limited to 10 participants and runs 8 hours from US$185[30], and a shared morning cruise from Pollonia to Polyaigos is limited to 10 participants and takes 5 hours from US$115.[31]
from US$144
The full-day Milos and Polyaigos sailboat listing starts from US$144, runs 10 hours and is guided in Greek and English.[11]
With children
For smaller children, a shorter day is easier to manage. A half day gives you the caves, a swim and the ride home, and the Aegean around Milos is 23-26°C (73-79°F) in July to September, described as ideal temperatures for long swims and snorkeling.[10] If you want the long version anyway, a full-day catamaran cruise that includes a paddle board starts from US$219.[32]
Several listings are wheelchair accessible, including a 5-hour catamaran trip from US$177[7], an 8.5-hour Kleftiko cruise with meal, drinks and photos at Sykia from US$206[33] and a 9-hour small-group cruise from US$260.[8] Snacks, a refillable bottle and a sun hat for each child make a difference on an open deck, and the swim stops break up the day nicely. On a full day, plan for a long stretch on the water and pack accordingly.
The wind, on both
The Meltemi shapes both formats. It is a strong seasonal northerly wind that usually blows from late spring to early autumn, often reaching its peak in July and August, and in the right conditions it creates an ideal sailing breeze for experienced crews.[34] On a sailing boat that is half the pleasure. On a small motorboat, sit towards the back of the deck and keep hold of your hat. Mornings often feel calmer on the water, and a swim before lunch is easier for anyone prone to seasickness.
Sea conditions can also stretch the day: full-day boat trips range from 6-8 hours long and can even go up to 12 depending on the sea conditions.[24] Both formats build in swim stops rather than fixed landings, and the half-day speedboat route includes two unnamed hidden gems between the headline stops.[1] Free cancellation up to 24 hours in advance for a full refund is offered on the boat listings.[1]
The short answer
If you have one day on Milos and Kleftiko is the point of the trip, take a half day. You still get the caves, the arches and the swim, and you are back on land with hours left. Book the 5-hour speedboat if you like speed and spray[1], or a 5.5-hour sail if you would rather move quietly.[6]
If you want the second island, take the full day. Polyaigos is the Aegean's biggest uninhabited island[3], and the full-day Kleftiko and Polyaigos boat tour runs 10 hours from US$185 and is rated 4.82 from 282 reviews.[2] If boats are not your thing at all, remember that Kleftiko can be reached on foot, and hikers do it on their own.[35] Whichever you pick, book the boat that matches your energy rather than the one with the longest list of stops.
Listed trip length by tour
From-prices per adult, half day and full day
All amounts are from-prices per adult:[1][2][7][11][28].
When to go, and what changes with the season
How to choose your day
Count your hours
Look at the listed duration, not the photo count: 5 hours is a half day, 10 hours is a full one.[1][2]
Decide about Polyaigos
If the second island matters, filter for the full-day routes that include Poliegos and Polyaigos.[2]
Pick the boat
Speedboat for speed, sailing boat for a quiet glide, catamaran for deck space, private if you want the whole boat.
Check the terms
Reserve now and pay later and free cancellation up to 24 hours in advance appear on the boat listings.[2]
Check your dates
The Milos sailing season runs May through October.[9]
Compare the half day and the full day Kleftiko trips
from US$185Reserve now & pay later
