Kastro Hotels

"Amazing hotel! Super clean and owners very friendly. Enjoy our 4 days there."

"Terrific stay in Sifnos at the Nival Boutique Hotel. Easy walk to restaurants in Artemonas and e-bike rental!"

"Our stay at the Six Bedroom Sea View Villa in Sifnos was unforgettable — the villa itself was stunning, with breathtaking sea views, two infinity pools, and an exterior hot tub that created a true private paradise, but what made the experience truly exceptional was the warm hospitality and professionalism of the villa manager, Charitini Kallimorou, who went above and beyond to make us feel welcome, cared for, and at home, always attentive to every detail and ready with excellent local recommendations; thanks to her dedication and kindness, our time in Sifnos was seamless, memorable, and one we cannot wait to repeat."

"Yes the breakfast was very good We were in suite 10 which had an excellent beach view ,while also being quite private."

"We cannot say enough good things about NOS!! We were there for our honeymoon, looking for a relaxing time in Sifnos, and NOS was the absolute perfect place to stay for that! Our room was sleek, clean, and had a private patio with a small plunge pool which was incredible. The staff were so friendly and attentive and always seemed to be one step ahead of us in terms of knowing what we wanted or were missing. And last but not least, the food was amazing! The breakfast there may have been the best breakfast I've ever had in my life, and I was lucky enough to have it three times as it was included as part of the stay! If you're looking for a relaxing stay in a beautiful setting, I cannot recommend NOS enough; already trying to plan on when I can go back!"

"The breakfast was delicious and excellent coffee and Cappuccinos. The staff were very friendly and helpful. The hotel was nicely decorated and beautiful sea views if you choose. I would recommend to everyone and hope to return some day."

"Absolutely loved my stay! The property is stunning, the staff was incredible and the food was wonderful "

"Lovely family run accomodation. Staff were so friendly, kind and helpful. Beautiful pool setting and we got to sit there every morning whilst enjoying a lovely breakfast with gorgeous views. It’s handy to have a car whilst in Sifnos too"

"A beautiful"