Instead of spending millions on a huge estate or a luxurious villa, for 2.7 million pounds sterling (over 3.5 million dollars) one can buy an entire private island with its own castle, writes the Daily Mail tabloid.

It is reported that the island of Isla Centinela, with an area of 10,000 square meters, is located in the middle of the El Burguillo reservoir.

"The island is located only an hour's drive from Madrid. On it stands an unusual castle, built in 1923. The former watchtower was converted into a four-story residential residence," the media writes.

The building has massive towers and floor-to-ceiling panoramic windows offering views of the Ávila mountains and the surrounding reservoir. The interior combines historic charm with modern comfort: brick walls, wooden elements, and dark wood finishes give the castle a distinctive character.

The new owner will be able to settle into one of seven spacious suites, each equipped with a fireplace. They are perfect for hosting guests.

In addition, the castle has a professional bar and an entertainment room, which, if needed, can be converted into four more bedrooms.

Among other rooms – a living room, kitchen, garage, and pantry.

The property was listed for sale by the agency Century 21 Homeplace for 3.25 million euros (about 2.7 million pounds sterling). The deal is being handled by real estate agent Ignacio La Iglesia.

The island has an autonomous life-support system: it is equipped with water purification and filtration equipment, solar panels, and a backup generator.

On the territory itself, there are private bays and wooded areas that can be explored without fear of encountering crowds of tourists, as is the case on the mainland part of the country.

A pier has also been arranged, which is convenient to use when the water level in the reservoir is high.

For part of the year, the water recedes so much that the island connects to the mainland. During this period, it can be reached by car.

However, Isla Sentinela is not the only private island currently seeking a new owner. The island of Stroggilo in the Dodecanese archipelago in the southeastern part of the Aegean Sea has also been put up for sale. This group of islands includes, in particular, Rhodes and Kos. Potential buyers are offered what is effectively a "blank canvas" for realizing their own ideas.

The area of the Greek island is 54 acres. It once served as a refuge for sailors seeking shelter from bad weather. Today, its advantages are said to be green vegetation throughout the year, a picturesque coastline, incredible views, and pristine nature.

Several small islands are located nearby, in particular Patmos and Leros. The nearest popular tourist destination is the island of Kos, which is about 45 nautical miles away.

"As one of the most affordable undeveloped islands in the region, it offers a 'blank canvas' for an owner with far-sighted plans," the listing said.

The island of Stroggilo has been put up for sale for 4.5 million euros (about 3.8 million pounds sterling). The listing is posted on the Private Islands Inc website.

Other tourism news

As UNIAN reported, an island with a house is being sold in Europe for the price of an apartment on Khreshchatyk. In particular, a remote island in Scotland with its own pier and a traditional shelter cottage is being sold for approximately $463,000. That is how much some apartments in the center of Kyiv cost.

The discussion concerned Hildasay, which is located off the west coast of the Shetland Islands and covers about 108 hectares. It can only be reached by boat from the mainland or neighboring islands.