Looking for a refreshing, healthy drink to cool off on a hot summer day? Look no further than this refreshing Blue Lagoon Mocktail-a visually stunning and delicious alcohol-free drink you can make in 5 minutes with blue spirulina, lemon sparkling soda, and coconut water.

I am excited to share this mocktail version of the classic Blue Lagoon cocktail! This vibrant, refreshing, non-alcoholic beverage is a unique addition to any summer party with its subtly sweet citrus flavor. With its striking blue color and zesty lemon flavor, it's sure to impress! You might also enjoy this easy to make Watermelon Water.
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Why You'll Love This Blue Lagoon Mocktail
- This beautiful blue mocktail will catch everyone's eye! It's great for lounging by the pool and summer parties.
- This Blue Lagoon Mocktail has a refreshing citrus flavor, sweetness from the coconut water, and effervescence from the sparkling lemon soda and club soda.
- Unlike most blue drinks, this Blue Lagoon Mocktail's blue color is natural, coming from blue spirulina rather than artificial dye.
- With just a few ingredients and simple steps, you'll have a beautiful blue drink ready in minutes!
Serve it with this 4-Ingredient Guacamole, tortilla chips, Pink Hummus with Roasted Beets, and crackers for a delicious and beautiful spread.
Such and fun and tasty mocktail! Love the color!
- Angela
Ingredients

Here are the simple ingredients to make this Blue Lagoon Mocktail:
- Blue Spirulina - Vibrant blue spirulina is a dietary supplement derived from blue-green algae available online or at your local health food store. It's packed with antioxidants, minerals, protein, and vitamins. I used organic luminous blue spirulina to give this mocktail its signature bright blue color without artificial coloring.
- Sparkling Lemon Soda for a delicious citrus flavor. You can use lemonade, which will make this mocktail quite a bit sweeter.
- Coconut Water - for a hint of the tropics and a touch of sweetness.
- Club Soda - for extra fizz. Sparkling water is a great choice, too.
- Garnish - Maraschino cherries and lemon wedges for a pop of color, aroma, and extra flavor.
- Ice - It's essential to have lots of ice to make this virgin blue lagoon mocktail, especially when making it for a crowd.
A complete ingredient list with exact amounts can be found in the recipe card below.
Substitutions & Variations
Here are some substitutions and variations you can try when making this easy summer drink:
- Blue spirulina powder - Instead of blue spirulina powder, you can use Blue Raspberry Syrup or Blue Curaçao Syrup, which make for a sweeter drink. These syrups usually do not contain alcohol like Blue Curaçao liqueur, an orange-flavored liqueur made from the dried peel of the laraha citrus fruit. The blue color in Blue Curaçao liqueur and Blue Curaçao syrup is from blue food coloring; check the ingredient labels.
- Coconut water - Use orange juice or lemon juice instead.
- Garnish - Instead of lemon wedges, you can use orange wedges. Or add a cocktail umbrella! For extra pizzazz, rim the edge of the glass with cut lemon, followed by sugar.
- Herbal - Muddle with mint leaves or basil leaves for an herbal note.
- Sparkling lemon soda - Use lemonade, lemon-lime soda, sparkling water, or sparkling water with a splash of fresh lemon juice.
- Sweeter - Mix in simple syrup to make it sweeter, or add pineapple juice, orange, or blueberry pomegranate juice to add a fruity flavor. If you like lavender, try my homemade lavender simple syrup!
How to Make This Blue Lagoon Mocktail Recipe
It's easy to make this refreshing blue mocktail in just a few minutes:

- Step 1: Place ⅛ teaspoon of blue spirulina in a bowl. Add coconut water and whisk vigorously until mixed.

- Step 2: Fill a tall glass with ice cubes. Pour the blue spirulina and coconut water mixture over the ice.

- Step 3: Add the sparkling lemon soda to the glass.

- Step 4: Pour club soda on top. Stir gently.

- Step 5: Garnish with a lemon wedge and three maraschino cherries on a cocktail stick. Serve this mocktail with a reusable glass straw or environmentally friendly straws. Enjoy!
Expert Tips
- Mix Well: Make sure to mix the blue spirulina powder thoroughly with the coconut water to avoid clumping.
- Chill Ingredients: For a perfectly cold mocktail, chill all your ingredients beforehand.
I hope you enjoy making this beautiful Blue Lagoon Mocktail as much as I do. It's a fun, refreshing, and stunning addition to any summer gathering. Cheers to sunny days and delicious drinks!
Recipe FAQs
Blue spirulina is a natural extract obtained from blue-green algae. Phycocyanin, an antioxidant, gives blue spirulina its signature color and has powerful anti-inflammation effects. It has a mild taste in small amounts.
If you want to make the cocktail version of a Blue Lagoon, you can replace the club soda with one ounce of vodka and the lemon sparkling soda with lemonade. It will still be a delicious and refreshing drink with an extra kick!
Yes, you can prepare the base mixture of blue spirulina and coconut water up to 24 hours before. Store it in the refrigerator, whisk it before making the mocktail, and add the rest of the ingredients immediately before serving to keep it fizzy and fresh.
Use a hurricane glass, a tulip glass, or a highball glass to make this Blue Lagoon mocktail.
Related Vegan Drinks
If you try this recipe or any other recipe on my website, please leave a star rating and let me know how it goes in the comments below. I love hearing from you!
Recipe

Refreshing Blue Lagoon Mocktail
EQUIPMENT
INGREDIENTS
- ⅛ teaspoon blue spirulina powder
- 2 oz coconut water
- 4 oz sparkling lemon soda
- 2 oz club soda or a non-alcoholic vodka alternative
- Ice
- Lemon wedge garnish
- 3 maraschino cherries garnish
INSTRUCTIONS
- Place ⅛ teaspoon of blue spirulina in a small bowl. Add coconut water and whisk vigorously until the blue spirulina is dissolved.⅛ teaspoon blue spirulina powder, 2 oz coconut water
- Fill the glass with ice. Pour the blue spirulina and coconut water mixture over the ice.Ice
- Add 4 oz of sparkling lemon soda to the glass.4 oz sparkling lemon soda
- Pour 2 oz of club soda (or non-alcoholic vodka alternative) into the glass. Stir gently.2 oz club soda
- Garnish with a lemon wedge and 3 maraschino cherries on a cocktail stick.Lemon wedge, 3 maraschino cherries
- Serve immediately and enjoy!
NOTES
- Mix well: Make sure to mix the blue spirulina powder thoroughly with the liquids to avoid clumping.
- Chill ingredients: For a perfectly cold mocktail, chill all your ingredients beforehand.
- The calorie count does not include the garnish.
NUTRITION
Resplendent Kitchen offers nutritional information for recipes contained on this site as a courtesy. Although resplendentkitchen.com attempts to provide accurate nutritional information from online calculators, these figures are estimates.












holly says
I have never heard of spirulina, so I was so excited to find your post. I wanted a fun drink to make for my daughter's baby shower (she's having a boy) and this was the perfect answer. Thanks for sharing.
Emily Miller says
Thanks so much, Holly!
Paula says
This mocktail was not only gorgeous but it tasted great too!
Emily Miller says
I'm glad to hear it, Paula! Thank you so much for your review!
Angela says
Such and fun and tasty mocktail! Love the color!
Emily Miller says
Thanks so much, Angela. I'm happy to hear you enjoyed it!
DK says
I've never heard of Blue Spirulina but when I used it for this mocktail - it was simply delicious! This was the key drink for our bbq cookout!
Emily Miller says
I'm glad to hear you enjoyed this blue mocktail! Thank you for your review, DK!
Vicky says
This Blue Lagoon Mocktail makes me feel like I'm on a tropical vacation! This is the perfect mocktail for summer!
Emily Miller says
I'm glad to hear it, Vicky, it makes me feel that way too! Thank you so much!
Vicky says
This refreshing drink is the perfect summer mocktail!
Emily Miller says
Thank you so much, Vicky!
Tess T says
So good! Thank you for this awesome recipe!
Emily Miller says
Thank you, Tess, I appreciate the feedback! Have a great summer!
Emily Miller says
This blue lagoon mocktail is so refreshing! We hope you enjoy it as much as we do. Let me know in the comments!