Hoshino Resorts KAI Atami

Hoshino Resorts KAI Atami occupies a hillside position in the Izusan district of Atami, overlooking Sagami Bay from an elevation that sets it apart from the seafront properties clustered nearer Atami Station. As part of Hoshino Resorts' KAI collection of contemporary luxury ryokan, the property blends modern architectural design with traditional onsen ryokan service, emphasizing minimalist interiors and framed bay views over classical Japanese ornamentation. Room categories include Japanese-Style, Japanese-Western with Ocean View, and a Suite with Open-Air Bath, the latter offering private onsen bathing within the room itself. The signature infinity-edge outdoor bath appears to merge visually with the bay below, a distinctive feature among Atami's onsen properties. Kaiseki dining forms the core of the evening experience, prepared with seasonal ingredients and presented in a refined, multi-course format typical of the KAI brand. A spa offers additional treatments beyond the onsen bathing, and a concierge coordinates transport, dining reservations, and local excursions. The hillside setting requires a shuttle or taxi from Atami Station rather than a walk, trading central-town convenience for quiet, elevated bay views. This combination of design-forward ryokan styling, infinity bathing, and attentive service positions the property among Atami's highest-tier accommodation options.