🚢 Cruise Lingo 101: What Is a Solarium and Thermal Suite?
If you’ve ever looked at cruise ship photos and seen peaceful indoor pools, cozy loungers, or adults-only spa spaces, you’ve likely come across two popular cruise terms: Solarium and Thermal Suite.
They both sound a little fancy but they’re actually some of the most relaxing places on the entire ship.
Let’s break them down in simple terms.
☀️ What Is a Solarium?
A Solarium is an indoor or partially enclosed pool area found on many cruise ships.
It is typically:
- Adults-only (usually 16+ or 18+, depending on the cruise line)
- Quiet and relaxing
- Climate-controlled for comfort in any weather
Most solariums include:
- Heated pools
- Hot tubs or whirlpools
- Lounge chairs and quiet seating areas
- Large windows or glass ceilings for natural light
It’s designed as a peaceful escape from the more active pool decks.
🧖♀️ What Is a Thermal Suite?
A Thermal Suite is a spa area onboard that focuses on heat, water therapy, and relaxation.
Unlike the solarium (which is usually free), the thermal suite is typically part of the spa and requires a paid pass.
Common features include:
- Heated loungers
- Steam rooms
- Saunas
- Salt rooms or aromatherapy rooms (varies by ship)
- Hydrotherapy pools
- Rain showers or experience showers
It’s essentially a wellness circuit designed to help you relax, unwind, and recharge.
🆚 Solarium vs. Thermal Suite: What’s the Difference?
Here’s the simplest way to think about it:
- 🏊 Solarium
- Free access (on most cruise lines)
- Pool-based relaxation space
- Casual and quiet
- Great for reading, resting, or swimming
- 🧖♂️ Thermal Suite
- Paid access (spa package or day pass)
- Heat and wellness-focused experience
- Includes saunas, steam rooms, and specialty relaxation areas
- More of a “spa experience” than a pool day
Both are quiet but they offer very different styles of relaxation.
💖 Who Will Love These Spaces?
These areas are especially popular with cruisers who:
- Prefer a calm environment away from loud pool decks
- Want adult-only relaxation time
- Enjoy spa-style experiences at sea
- Are looking for a quieter cruise atmosphere
They’re also perfect on sea days when you just want to slow down and enjoy the ship itself.
💡 A Few Helpful Tips
- Solariums can get busy on sea days, so earlier or later in the day is usually quieter
- Thermal suites often sell out, so booking in advance can be worth it
- Bring a book, water, and plan to stay awhile - these spaces are designed for slow living
- Check your cruise line’s rules, since age limits and features vary slightly
🏁 Cruise Lingo 101 Takeaway
The Solarium is a quiet, adults-only pool area often included on cruise ships, while the Thermal Suite is a paid spa experience focused on heat, relaxation, and wellness. Both are perfect for cruisers looking to unwind and enjoy a calmer side of life at sea.
