Shirahama Key Terrace Hotel Seamore

  • Breakfast & dinner
  • 107Mid-range onsen
  • Onsen
  • Onsen for couples
  • Onsen for families
  • Open-air bath
  • Private onsen
  • Sauna
  • Sea views
  • 110Swimming pool

Overview

Wake up to the sound of waves and fall asleep to the glow of the horizon at SHIRAHAMA KEY TERRACE HOTEL SEAMORE. Overlooking the vast Pacific Ocean, this seaside escape blends classic hospitality with fresh, modern design. Once known as Umedaru-Spa Hotel Seamore, the hotel was reimagined and reopened as a vibrant destination for anyone visiting Shirahama.

You’re not just staying near the ocean—you’re staying with it. Infinity footbaths, open-air hot springs, seafood dining, saunas, and sea views from nearly every room invite you to feel the breeze, hear the tide, and relax deeply. Whether you’re here for a quick getaway or a long break, HOTEL SEAMORE offers a stay filled with warm touches and ocean light.

Accommodation

Your room becomes a part of the view. Every room at HOTEL SEAMORE is designed to bring you closer to the sea, with natural light, soft materials, and open layouts that frame the waves.

Room Types

  • Suite Ocean View: Spacious, beautifully designed rooms with wide oceanfront balconies.
  • Deluxe Ocean View: Comfort and sea views in a clean, modern layout.
  • Standard Partial Ocean View: Great value with cozy space and soft morning light.
  • Japanese Room (Ocean View or Port Side): Tatami rooms that offer traditional charm and natural simplicity.

Each room includes free Wi-Fi, a flat-screen TV, air purifier, and selected amenities. Some rooms also feature deep soaking tubs that make the most of the view.

Dining

The rich waters of Shirahama deliver flavor to your table. At HOTEL SEAMORE, every meal reflects the local landscape—from ocean-caught sashimi to handmade ramen and fruit cocktails.

Dining Options

  • By the Ocean: A buffet-style restaurant serving Japanese and Western dishes, adapted to morning, lunch, and dinner.
  • Ikesu Warouda: Specializing in fresh fish caught that day. Try fried seafood, or order delicate sashimi prepared to highlight the day’s catch.
  • Sushi Yata: Sit at the seaview counter and enjoy sushi crafted on the spot by expert chefs.
  • KON BAR: A casual bar offering sake, whiskey, and cocktails using seasonal fruit.
  • Hanatei: Known for Wakayama-style ramen, this eatery also serves regional sake and simple comfort dishes.

TETTI BAKERY & CAFÉ Stop by for freshly baked bread, espresso drinks, and morning pastries. You can take your order to go or relax inside with sea views and warm coffee.

Onsen and Wellness

Shirahama Onsen is one of Japan’s three oldest hot springs. HOTEL SEAMORE brings that legacy to life through multiple bath areas where you can enjoy the water, wind, and sky.

Onsen Options

  • Sandan no Yu: A 1.2-meter deep open-air hot spring where you can feel completely immersed in the ocean atmosphere.
  • Umi no Yu: An indoor public bath featuring three pools at different temperatures, including a kids’ bath and a seated soaking area.
  • Infinity Footbath: A 30-meter-long walkway of warm water with views across the Pacific. Sit, relax, and enjoy the moment.

Guests with Tattoos The hotel does not restrict tattooed guests from using its baths or wellness areas. You are welcome to enjoy all onsen and sauna facilities.

Facilities

From cozy corners to open-air pools, HOTEL SEAMORE is filled with thoughtful features that enhance your stay.

  • Yukata Lounge: Choose your favorite yukata robe and geta sandals and stroll the town in traditional style.
  • Amenities and Pillow Select: Pick additional items like mouthwash, sponges, or your ideal pillow from the comfort corner.
  • Group Lounge: Perfect for gatherings, meetings, or shared downtime.
  • Playroom: Designed for children to enjoy safe, creative indoor play.
  • Business Room: A quiet space with basic office tools and Wi-Fi access.
  • Coin Laundry & Free Wi-Fi: Available throughout the property.

Activities

In and around the hotel, you’ll find plenty of ways to relax or explore.

Sauna House “on”

A private ocean-view sauna designed for deep relaxation. Each space includes:

  • Private sauna room with self-löyly (Finnish steam ritual)
  • Terrace garden with cold bath, outdoor soaking tub, and fresh air seating
  • Living space with kitchen, beverages from local makers, and child-friendly features
  • Organic amenities by F organics
  • Massage plan using aromatic oils and CBD (by advance reservation)
  • Swimsuits required; sauna wear provided

This is a rare opportunity to enjoy wellness in total privacy while overlooking the sea.

Infinity Pool

A 32-meter pool stretching out toward the ocean. You can swim, float, or just bask in the light.

  • Children’s Pool: A shallow area (40–50 cm deep) for little ones to splash safely
  • Fire Space: Reserved box seating near the poolside (reservation required)
  • Barrel Sauna: Poolside barrel sauna available seasonally

Pool Access Plans

  • Overnight Guests: Free access
  • Day Visitors: Adults
  • Fire Space Rental

Available spring through fall, the pool brings you as close to the Pacific as you can get—without stepping off the terrace.

Additional Features

  • All rooms face the ocean or overlook the bay
  • Four hot spring areas, including a 30-meter ocean-view footbath
  • Fresh seafood, handmade ramen, sushi, and seasonal buffets
  • Private sauna rentals, spa treatments, and massage plans
  • Infinity pool with separate kids’ area and fire pit seating
  • Bakery, café, souvenir shop, and yukata rental area
  • Spacious rooms for solo travelers, couples, and families
  • Just a short drive from the beach, Adventure World, and Senjojiki cliffs

Shirahama Key Terrace Hotel Seamore – Address

📍 1821 Shirahama, Nishimuro District, Wakayama, Japan, 649-2211

Ryokan Location on the Map

Ryokans nearby

4.2/5
Kansai > Shirahama Onsen

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  • Breakfast & dinner
  • Open-air bath
  • Private onsen
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