Kos has three hotels where a swim-up room opens onto water you genuinely share, and D'Andrea Lagoon All Suites in Marmari is the clear pick – adults-only, 80 suites, and five separate swim-up categories all feeding the same lagoon pool. Rates run from about €110 at the cheapest to €240 at the family option. Two other well-known Kos swim-up resorts exist but are not sold through Booking.com at all.
Booking for live prices · Review for our take
| Hotel | Rating | From/night | Area | Best for | |
|---|---|---|---|---|---|
| D'Andrea Lagoon All Suites | Exceptional | ~€170 | Marmari | Best overall · adults-only · five swim-up suite tiers | Review ↓ |
| Astir Odysseus Kos Resort & Spa | Superb | ~€240 | Tigaki | Best for families · 1,200 m² infinity pool · beachfront | Review ↓ |
| Palladium Hotel | Excellent | ~€110 | Marmari | Cheapest · adults-only swim-up block · 28 m² ground-floor rooms | Review ↓ |
Three rows, and that is the honest extent of it. Kos is full of hotels selling rooms with a private pool, which is a different category – the test here is whether the water is shared, and only these three pass it while also being bookable. The swim-up rooms hub applies the same rule elsewhere.
Which Kos swim-up room should you book?
Book D'Andrea Lagoon All Suites. It is the highest-rated hotel on this list by a distance, it is adults-only across all 80 suites, and it is the only Kos property built around swim-up as the main event rather than as one category among many. Check D'Andrea Lagoon availability.
The other two answer different questions.
If you are traveling with children, book Astir Odysseus in Tigaki – it is the only family-friendly option here, and its swim-up suites sleep four across two bedrooms. If the rate is what decides it, book Palladium Hotel, also in Marmari, where a ground-floor swim-up room on an adults-only pool starts around €110.
| Your trip | Book | Where | The trade-off |
|---|---|---|---|
| Adults-only, best-rated, most choice | D'Andrea Lagoon | Marmari | All-suites pricing; no family option |
| Traveling with children | Astir Odysseus | Tigaki | The most expensive of the three |
| Lowest rate | Palladium Hotel | Marmari | A 3-star finish, not a luxury resort |
D'Andrea Lagoon All Suites
The only hotel on Kos designed around the swim-up room. All 80 suites are adults-only, on a 300 m stretch of private beach at Marmari, and there are five swim-up categories rather than the usual one: Deluxe Swim-up at 32 m², Superior Deluxe at 38 m², and the Premium Swim-Up Suite at 56 m² plus a 30 m² terrace, among others.
Read the room descriptions carefully, because the wording is easy to misread. Each suite has a private pool deck – the terrace is yours – but the phrase that matters is the next one: "access to lagoon pool". The water is a single shared lagoon that all the swim-up suites feed into. Private deck, shared pool. That is exactly what a swim-up room should be.
It carries the highest guest rating of any swim-up property on the island, and rates open around €170 – below Astir Odysseus despite the higher standard, because there are no families and no half-empty shoulder weeks to price around.
Book this one if you want the best swim-up room on Kos and do not need it to be family-friendly. Check D'Andrea Lagoon rates.
Astir Odysseus Kos Resort and Spa
The family answer, and the only one. The category to book by name is the Executive Suite with Two Bedrooms Swim-up with Sharing Pool – the hotel's own wording, and about as unambiguous as this silo gets. Two bedrooms, direct access, shared water.
The pool complex is the reason to pay for it: five outdoor pools including a 1,200 m² infinity pool with a swim-up bar, a family lagoon with waterslides, and a separate adults-only quiet pool. It sits directly on the waterfront at Tigaki, the island's best stretch of proper sandy beach.
One thing to get right at the booking stage: Astir Odysseus sells both shared-pool and private-pool rooms. If you want the swim-up experience, the words "Sharing Pool" have to be in the room name. A private-pool suite here is a different product at a different price.
At around €240 it is the most expensive of the three, which is what a family-sized suite on a five-star beachfront costs.
Book this one if you are traveling with children – and check the room name says Sharing Pool. Check Astir Odysseus rates.
Palladium Hotel
The value pick, and better organized than its rate suggests. The Deluxe Double Swim Up Room is a 28 m² ground-floor room sleeping up to three, and Palladium puts its swim-up rooms in separate adults-only blocks with unlimited access to an adults-only shared pool and sun loungers allocated directly outside.
That last detail is worth more than it sounds. At most resorts a swim-up room means sharing the main pool with everyone; here the swim-up block has its own adult pool, so the water outside your door stays quiet even in August.
Book the ground floor specifically. Some Palladium room types reach the shared pool by steps from the first floor instead, with their sunbeds allocated across from the building rather than outside it – the same pool, a worse position.
Rates open around €110, roughly a third under D'Andrea for the same core idea at a lower standard of finish.
Book this one if you want an adults-only swim-up pool at the cheapest rate on the island. Check Palladium Hotel rates.
Grecotel LUXME Kos does not qualify, despite six pools and a lazy river. Its pool rooms are Bungalows and Family Suites with a private 30–32 m² pool of their own. Excellent hotel, wrong category – that is a private-pool villa, not a swim-up room.
The two Kos swim-up resorts you cannot book online
This is the part no other guide will tell you, and it is the reason this list is three rows rather than five.
TUI BLUE Palazzo del Mare at Marmari has the most spectacular pool on the island – a 3,000 m² circuit that wraps the entire resort – and it is adults-only, 50 m from Marmari Beach and 15 km from the airport, with 154 double rooms plus 21 suites. It is also not listed on Booking.com. TUI BLUE is a tour-operator brand, so it sells through TUI and First Choice as a package rather than as a room-only booking.
Blue Lagoon Village at Kefalos is the other: 447 rooms, five-star, all-inclusive, four outdoor pools and a free water park, seven kilometers from the airport near Paradise Beach. Also absent from Booking.com.
Do not search Booking.com for "Blue Lagoon Village". There is a hotel of that exact name in Gazipaşa, Turkey – a different country and a different property. The Kos resort is not on the site at all.
If either appeals, book them through a UK tour operator as a package including flights. That is genuinely how this end of the Greek market works, and for Kos specifically it is often cheaper than assembling the same trip yourself.
Why Kos splits between shared and private
Kos has an unusually high number of hotels selling a room with water attached, and an unusually low number where that water is shared. Understanding the split saves you a bad booking.
The island's five-star development ran toward private pools – Grecotel's bungalows, OKU Kos, KOIA and most of the newer all-suite resorts put a small pool on each terrace, because that is what the luxury market pays for. Genuinely shared swim-up water survives mainly at two kinds of property: the adults-only mid-market resort (D'Andrea, Palladium, both in Marmari) and the large family resort with a pool complex big enough to justify it (Astir Odysseus).
Which is why Marmari is the answer to "where on Kos" for two of the three. It is 15 minutes from the airport on the north coast, quieter than Kos Town, and holds both adults-only swim-up properties on the island. Tigaki, ten minutes further, has the better beach and the family option.
For a deeper version of this market, Rhodes and Corfu both carry more confirmed shared-pool inventory than Kos does, and Cyprus is the strongest in the eastern Mediterranean with around ten properties.
When to go
May, June and September are the best months for a swim-up room on Kos – warm sea, reliable sun, and rates well below the July and August peak. September in particular holds the summer sea temperature while the crowds thin out.
July and August are the peak, hottest and busiest, and the point at which the small swim-up inventory becomes a real constraint. D'Andrea has 80 suites in total and Palladium's swim-up rooms sit in a couple of blocks – book three to four months ahead for July dates, earlier than you would need to for a standard room.
April and October are the edges of the season. The sea is cooler and some resorts have not opened or have already closed, so check the property's operating dates before booking flights.
FAQ
Images: Asurnipal / Wikimedia Commons / CC BY-SA 4.0
