Overview
Ooarai Park Hotel is a coastal hot spring hotel in Oarai, Ibaraki, surrounded by the sea and pine trees. You stay at 8249-10 Isohama-cho, Oarai-machi, close to Aqua World Oarai Aquarium and the Pacific coastline.
The hotel reopened after a full renewal on March 1, 2026, with refreshed rooms, a refined dining style, private villa stays, and a stronger focus on hot springs and sauna time. You can choose a hotel room with ocean views, a sauna room, a jacuzzi room, or a private villa with an open-air hot spring bath and sauna.
This is a good choice when you want a relaxed coastal stay with Oarai Onsen, seasonal Ibaraki food, easy sightseeing, and rooms that suit both couples and families. The atmosphere feels calm and polished, with the sea, pine trees, and warm baths shaping the stay.
Accommodation
You choose from seven hotel room types, plus private villas. The hotel rooms include sauna suites, ocean-view rooms, jacuzzi rooms, family rooms, and simpler twin rooms without views. Some rooms face the sea, while others focus more on space, price, or in-room features, so choose carefully when the ocean view matters to you.
Healing Sauna Suite is the most complete in-room wellness option. It has a meditation sauna, cold bath, jacuzzi, relaxation space, cinema-style raised seating area, and large smart TV. This suite is limited to one room and works well when you want to enjoy sauna, bathing, and rest without leaving your room. The in-room bath is not hot spring water.
Luxury Sauna Suite also has a sauna, cold bath, jacuzzi, relaxation space, and large smart TV. It includes bunk beds and suits you well when you travel with family or friends and want a room made for both rest and fun. The in-room bath is not hot spring water.
Ocean View Club Sauna gives you a sea-facing room with a private sauna, jacuzzi bath, relaxation space, and large smart TV. This room is designed for two people and works well when you want ocean views and sauna time in one space. The in-room bath is not hot spring water.
Ocean View Club Jacuzzi gives you an ocean-view room with a jacuzzi bath, relaxation space, large smart TV, and bunk beds. It has a playful feel and works well when you want a sea view and a more casual room style. The in-room bath is not hot spring water.
Club Comfort Family is a Japanese-Western family room with a raised relaxation area and a 120-inch projector. You can watch movies, enjoy a large-screen setup, and spend time together in a room designed for families or small groups.
Ocean View Club Superior is a standard twin-style ocean-view room with a bath and toilet. It gives you a clear view of the sea and a practical layout for a relaxed coastal stay.
Club Classic is a simple twin room with no view. It has a bath and toilet and works well when you plan to spend most of your time in the baths, dining area, lounge, or sightseeing around Oarai.
Room amenities include TV, phone, refrigerator, hair dryer, toilet with washing function, kettle, soap, shampoo, conditioner, towels, bath towels, yukata, and slippers. Additional items are available from the amenity bar, including toothbrushes, razors, hairbrushes, cotton sets, and shower caps.
Dining
Dinner focuses on Japanese-Western kaiseki using seasonal ingredients from Ibaraki. The meal brings together seafood, meat, vegetables, and carefully prepared dishes that look refined without feeling too formal.
Dinner course options include a special Japanese-Western kaiseki, standard Japanese-Western kaiseki, and casual Japanese-Western meal. Depending on your plan and the season, you may enjoy dishes such as assorted appetizers, soup, kanpachi carpaccio with Okukuji egg and citrus sauce, monkfish with ankimo mayonnaise, grilled wagyu sirloin, domestic pork or chicken herb grill, sea bream rice with sesame broth, milk pudding, and seasonal granita.
In winter, a plan with monkfish hot pot may also be available. This suits Oarai well, as monkfish is one of the area’s well-known seasonal tastes.
Breakfast is buffet-style, with both Japanese and Western dishes. You can enjoy items such as oboro tofu, local vegetable dishes, simmered dishes, Mito natto, grated yam, mekabu, shirasu, marinated tuna, grilled salmon or mackerel, lotus root with plum, rice cooked in a pot, miso soup, kenchin soup or monkfish dobu soup, daily naval curry, salad, homemade chicken ham, fruit, yogurt, bread, sausage, bacon, potatoes, ratatouille, scrambled eggs, and Okukuji egg dashimaki.
Children’s dinner menus are also available, with separate meal styles for elementary school children and preschool children.
If you have food allergies, contact the hotel in advance. The hotel may not be able to provide meals in some cases when allergy risk is high.
Onsen and Wellness
Ooarai Park Hotel has one of the few hot spring baths in the Oarai area. The large public bath uses Oarai Onsen, a sodium chloride cold mineral spring. This type of water is known for strong heat retention after bathing and is often associated with soft, moisturized skin after a soak.
The public bath area includes both indoor and outdoor baths for men and women. You can enjoy the open-air bath while feeling the season and the coastal air. Bathing hours are generally 15:00 to 24:00 and 6:00 to 9:00.
The spring has a pH of 7.3 and a source temperature of 17.7°C. The bath is heated to around 40°C to 42°C. The water is listed as brownish in color and is used with added water and heating.
Listed benefits include neuralgia, muscle pain, joint pain, frozen shoulder, motor paralysis, joint stiffness, bruises, sprains, chronic digestive concerns, hemorrhoids, cold sensitivity, recovery after illness, fatigue recovery, general health support, cuts, burns, and chronic skin concerns.
A sauna is available in the men’s large bath only. The men’s and women’s baths do not switch, so the sauna is not available on the women’s side.
If you want a more private hot spring stay, choose Park Villa. The villas include open-air baths with Oarai Onsen and private saunas, giving you your own bath and sauna time away from the public bath area.
Guests with tattoos
If you have tattoos, you can use the baths only when the tattoo can be fully covered with up to two hotel-designated cover stickers. This rule also applies to the open-air bath and sauna.
If you do not use cover stickers, or if your tattoo cannot be fully covered, you may not be allowed to use the public bathing areas.
For the most private option, consider a villa with its own open-air hot spring bath and sauna.
Facilities
Ooarai Park Hotel has facilities for bathing, dining, relaxing, and simple in-house time. You can use the restaurant, shop, lobby lounge, public hot spring baths, men’s sauna, after-bath lounge, and hotel rooms.
The shop sells snacks, drinks, daily-use items, and souvenirs made with Ibaraki products. It is open from morning until evening, so you can pick up small items during your stay.
The lobby lounge offers a welcome drink after check-in. You can sit while looking toward the pine trees, then move slowly into your room, bath, or dinner.
The after-bath lounge gives you a place to rest after soaking. This makes it easy to pause before returning to your room or heading to dinner.
Park Villa adds a more private stay option. KOLMIO villas include open-air hot spring baths, HARVIA saunas, kitchens, air-conditioning, toilets with washing functions, private parking, and BBQ gas grills. TASSU dog villas also include private dog runs and accept up to three dogs per villa.
Activities
You can spend your stay slowly inside the hotel with baths, meals, lounge time, and a quiet room. If you book a sauna room or villa, you can shape much of your day around bathing, cooling down, and relaxing in your own space.
Nearby sightseeing is easy. Aqua World Oarai Aquarium is about 3 minutes away on foot and has shark exhibits, a large sunfish tank, a large tank recreating the Ibaraki sea, and dolphin and sea lion shows.
Oarai Isosaki Shrine is about 25 minutes away on foot or 3 minutes by car. It stands on a hill facing the Pacific Ocean and is known for its Kamiiso no Torii, a torii gate set on the rocks by the sea.
Oarai Coast is about 20 minutes away on foot or 2 minutes by car. It is known for sunrise views and has been selected among Japan’s notable beaches and pine-coast landscapes.
Hitachi Seaside Park is about 20 minutes away by car. You can enjoy seasonal flowers, including nemophila in spring and kochia in autumn, along with open park space, play areas, and cafés.
Other nearby spots include Mentaiko Park, Oarai Marine Tower, and Nakaminato Fish Market. This makes the hotel a convenient base for seafood, coastal views, family sightseeing, and relaxed drives around the area.
Additional features
Check-in starts at 15:00, and checkout is at 10:00. Exact times may vary by plan.
If you arrive by car, free outdoor parking is available for 46 vehicles and does not require a reservation. The parking area accepts light cars, standard passenger cars, SUVs, 1BOX vehicles, motorcycles, and some larger vehicles with advance consultation. EV charging is not available.
If you arrive by train, you can use local train and taxi routes to reach the hotel. The location also works well if you plan to visit Aqua World Oarai, Oarai Coast, Oarai Isosaki Shrine, or nearby seafood markets during your stay.
Ooarai Park Hotel suits you when you want a renewed coastal hotel with Oarai Onsen, ocean-view rooms, sauna and jacuzzi room options, private villas, Ibaraki kaiseki dining, and easy access to the sea, aquarium, shrine, and local sightseeing.
