Hyatt Regency Seragaki Island Okinawa - A Tattoo-Friendly Hot Spring in Onna, Okinawa

The infinity pool drops away to nothing, and then the East China Sea picks up where the edge left off. At Hyatt Regency Seragaki Island, the line between resort and ocean barely exists — tiered saltwater pools step down toward a private beach, and the water you're floating in is drawn from the same sea that stretches to the horizon on every side.

This isn't a traditional onsen. There are no mineral springs or cedar tubs here. What Seragaki Island offers is a modern resort bathing circuit on its own island off Okinawa's Onna coast — outdoor infinity pools filled with seawater, an indoor pool kept warm year-round, a steam sauna, a jacuzzi, and Spa Hanari's oceanview treatment rooms. Tattooed guests use every facility openly, from poolside to steam room, without covers or a second glance from staff.

If you're in Okinawa and want a full day of water and sun without worrying about bathing restrictions, this is the most straightforward choice on the island. Overnight guests get early access to the pools before anyone else is up — worth it for the quiet and the morning light across the water.

• Tattoos Accepted Across All Facilities: Tattooed guests use pools, sauna, spa, and beach without covers or questions — Japanese guest reviews from 2022–2023 specifically note tattooed visitors bathing openly alongside other guests.
• Private Island, 360-Degree Ocean: The resort sits on its own island connected by road to Okinawa's Onna coast, with a private beach, a sheltered lagoon, and unbroken sea views from every pool deck.
• Year-Round Bathing: An indoor pool held between 28–32°C, steam room, and jacuzzi mean the water circuit works in every season — Okinawa's winters are mild enough to keep the outdoor pools comfortable longer than anywhere on the mainland.
• International Resort, No Language Barrier: Staff handle English-language guests fluently — reviews from international visitors confirm smooth communication and proactive service.

The outdoor pools are the centerpiece. Tiered along the oceanfront, the infinity pools use circulated saltwater — the water has the weight and feel of the sea without the current or the sand. Below the pool deck, the private beach and lagoon open directly to the East China Sea for actual ocean swimming when the season allows it.

Inside, a heated pool stays warm year-round with a steam room and jacuzzi alongside. Spa Hanari adds treatment rooms with ocean views, restricted to guests sixteen and older. There are no natural hot springs here — this is marine wellness, built around salt water, sun, and the temperature contrast between warm pools and ocean breeze. On a clear day, the horizon line where pool meets sea is almost invisible.