Emerald Waters: Exotic Island Lagoons You Have to See to Believe

24 May 2025

Ever found yourself daydreaming about dipping your toes into crystal-clear waters, surrounded by lush greenery and tropical serenity? Well, you're not alone! There's something absolutely magical about island lagoons—those tranquil, hidden gems where time seems to stand still.

If your travel bucket list needs a serious glow-up, you're in for a treat. We’re about to take you on a virtual journey to some of the most jaw-dropping, emerald-hued lagoons on the planet. These spots are so surreal you'll have to pinch yourself to believe they’re real. Pack your sense of adventure (and maybe a swimsuit)—because these paradise-like lagoons are calling your name!

1. Blue Lagoon, Comino, Malta

Imagine stepping into a real-life postcard. That’s exactly what Malta’s Blue Lagoon offers. Nestled between the tiny islands of Comino and Cominotto, this lagoon is famous for its neon-blue waters that are almost too perfect to be real.

Why Visit?

- The water is so clear that you can see straight to the bottom—perfect for snorkeling.
- It's one of the calmest spots in the Mediterranean, making it ideal for a relaxing dip.
- Boat tours and kayaking here allow you to soak in the views from every angle.

Pro Tip:

It can get crowded, especially in summer. Visit early in the morning or late afternoon to enjoy the lagoon with fewer people.

2. Blue Lagoon, Iceland

Yes, Iceland has a Blue Lagoon too—but this one is something entirely different. Picture steaming turquoise waters surrounded by black volcanic rocks, with a misty, otherworldly vibe. Unlike your typical tropical lagoon, this one's geothermal, meaning you get the best of both worlds—warm, mineral-rich waters and crisp Nordic air.

Why Visit?

- The water temperature stays around 98–104°F (37–40°C), making it perfect for year-round soaking.
- The silica-rich mud is said to work wonders for your skin.
- You can sip on a drink from the in-water bar while watching the steam rise.

Pro Tip:

Book your visit in advance—this is one of Iceland’s top attractions and sells out quickly!

3. Palawan’s Small Lagoon, Philippines

Hidden between dramatic limestone cliffs, Small Lagoon in Palawan is a sanctuary of serenity and surreal beauty. The only way in? Kayak or swim through a tiny opening in the rock. It feels like discovering a secret world, where emerald waters lap gently against rugged cliffs.

Why Visit?

- The lagoon is incredibly peaceful, with waters so still they reflect the sky like a mirror.
- Snorkelers will love the underwater caves and marine life swimming beneath the surface.
- It’s one of the top spots in El Nido, but still has a hidden-gem vibe.

Pro Tip:

Pair your visit with Big Lagoon nearby for the full "tropical paradise" experience.

4. Aitutaki Lagoon, Cook Islands

If heaven had a lagoon, it would probably look like Aitutaki. This South Pacific treasure boasts seemingly endless shades of blue, soft white sands, and a sense of blissful isolation. It’s the kind of place where the only footprints in the sand might be your own.

Why Visit?

- You can walk on sandbars in the middle of the lagoon. Talk about bucket-list material!
- Home to One Foot Island, famous for its postcard-worthy scenery.
- The lagoon is protected by a barrier reef, making it one of the calmest tropical swimming spots.

Pro Tip:

Take a lagoon cruise—you’ll get to island-hop and even have a fresh seafood BBQ on the beach!

5. Koh Hong Lagoon, Thailand

Tucked away in Thailand’s Phang Nga Bay, Koh Hong Lagoon is a hidden paradise waiting to be discovered. The entrance is a narrow passage through towering limestone cliffs, opening up to a sheltered, emerald-green lagoon. It’s so peaceful, you’ll swear you’ve stepped into a dream.

Why Visit?

- The towering cliffs provide shade and seclusion, making it perfect for a quiet swim.
- The water is almost translucent green, thanks to the way sunlight hits the limestone.
- It’s a less-crowded alternative to Thailand’s other famous lagoons, like Maya Bay.

Pro Tip:

Visit during high tide—when the water level rises, the entrance becomes easier to navigate by kayak or boat.

6. To Sua Ocean Trench, Samoa

Okay, so technically not a lagoon, but To Sua Ocean Trench deserves a spot on this list because of its sheer uniqueness. This natural sinkhole filled with vibrant blue-green water is a one-of-a-kind swimming hole that looks straight out of a fantasy novel.

Why Visit?

- You climb down a wooden ladder into the pool, adding a sense of adventure.
- The lush green surroundings make it feel like a hidden paradise.
- It’s one of the most Instagrammable spots in the South Pacific!

Pro Tip:

Wear water shoes—the rocks at the bottom can be slippery.

7. Havelock Island’s Radhanagar Beach Lagoon, India

The Andaman Islands are no strangers to spectacular beaches, but Radhanagar Beach has its own little lagoon that makes it extra special. Known for its crystal-clear turquoise waters and powdery white sand, this spot is ridiculously photogenic.

Why Visit?

- The lagoon is shallow and perfect for floating lazily.
- It's an ideal sunset spot, with colors reflecting beautifully on the water.
- It’s been rated one of the best beaches in Asia, and for good reason.

Pro Tip:

Stay at a beachfront eco-resort to wake up to this tropical paradise every morning.

8. Jellyfish Lake, Palau

Ever swam with thousands of harmless jellyfish? At Jellyfish Lake in Palau, this once-in-a-lifetime experience is totally possible. These golden jellyfish have evolved without the need for stingers, making it safe to snorkel among them in a beautiful, enclosed saltwater lagoon.

Why Visit?

- It’s one of the only safe places in the world to swim with jellyfish.
- The lake itself is surrounded by lush jungle, enhancing its enchanted vibe.
- The jellyfish gently pulse through the water, creating a mesmerizing effect.

Pro Tip:

Touching the jellyfish is discouraged—help keep them safe by floating gently among them.

Final Thoughts

From hidden tropical sanctuaries to steamy geothermal pools, these lagoons prove that nature truly outdoes itself. Whether you're kayaking through crystal-clear waters, soaking in steamy volcanic pools, or swimming with jellyfish, each destination offers something totally unique.

So, the only question left is—which one’s going on your travel bucket list first?