iCake Melbourne – SpongeBob-Inspired Underwater World Cake

Price range: $239.00 through $259.00

iCake Melbourne – SpongeBob-Inspired Underwater World Cake

Dive into a world of fun and color with iCake Melbourne’s newest creation: the SpongeBob-Inspired Underwater World Cake. Perfect for kids’ birthdays, ocean-themed parties, or anyone who loves the whimsical charm of SpongeBob SquarePants, this cake brings the magic of the sea to life with vibrant blue tones, playful decorations, and intricate buttercream artistry.

The Underwater World Cake is a feast for the eyes and the palate. Crafted with premium ingredients, each layer is soft, moist, and full of flavor, ensuring a delicious experience alongside its stunning design. The cake’s bright blue buttercream base represents the clear ocean waters, while colorful piped details illustrate a lively underwater scene filled with flowers, coral shapes, and ocean-inspired patterns, reminiscent of SpongeBob’s whimsical Bikini Bottom home.

Every detail of the SpongeBob-Inspired Underwater World Cake is meticulously handcrafted by iCake Melbourne’s expert pastry chefs. From the playful flowers to the swirls of ocean currents, each element is designed to captivate and delight. Small edible pearls add a touch of elegance and mimic the sparkle of sunlight through water, creating an immersive underwater effect. This cake not only serves as a centerpiece but also as a memorable part of your celebration, evoking joy and excitement in every guest.

Available in multiple sizes, the Underwater World Cake is perfect for intimate family celebrations or larger gatherings. The vibrant blue theme pairs beautifully with other ocean-inspired decorations, making it a show-stopping addition to your party. Personalized messages can also be added to the cake to make it uniquely yours, allowing you to celebrate your loved ones in style.

iCake Melbourne believes that a cake should be both delicious and visually enchanting. The SpongeBob-Inspired Underwater World Cake embodies this philosophy by combining playful creativity with high-quality craftsmanship. Its bright blue palette, whimsical designs, and attention to detail ensure a cake that is as delightful to look at as it is to eat.

Order your SpongeBob-Inspired Underwater World Cake today from iCake Melbourne and bring the magic of the ocean to your next celebration. Perfect for SpongeBob fans of all ages, this cake turns any party into a vibrant underwater adventure. Experience the perfect combination of flavor, fun, and artistic expression in every slice.

Serving Guide Flavours Guide
Delivery to your doorCheck delivery fees & free-delivery eligibility.
Make it your celebration
  • Chocolate · Vanilla + more choices
  • Confirm pickup / delivery at checkout

Select a cake size to see recommended portions.

Estimates vary with cutting and appetite. Product-specific serving guidance takes priority.
How many portions? View iCake’s serving guide
Approximate portions for standard whole, single-tier cakes
SizeBirthdayChildrenWedding
15cm6–1012–2018–30
18cm8–1416–2824–42
25cm12–1824–3636–54

Children’s portions are about half a birthday portion; wedding portions about one-third. These are cutting estimates, not guaranteed headcounts. Appetite, cake shape and height matter. A product’s own serving guide takes priority. Partial cakes, multiple tiers and special shapes need their own guide.

Choose your cake options first. Messages and party extras are optional unless marked required.

Pickup & delivery — what happens next?

At checkout, choose your pickup date, store and time slot, or confirm delivery availability for your address. All required contact and fulfilment details must be completed before payment. A catalogue listing does not reserve a pickup slot.

  • Additional $10 for a second flavour.

    *Most of the cake has 2 layers of cream in between the chiffon, and you can choose different flavours for each layer of cream.

    *Please be aware on some flavours is not suitable to match together as well as some flavours might not be available depending on the cake design itself.

    iCake will notify you if there are any changes that need to be made to your choices.

    Thank you.

  • Note: Only for cakes with enough space to include the message. $5 Extra

    Additional $15 -  Personalised message card attached to the box

    Candles

    Cooler Bag

    Cutlery

    Birthday Hat

  • *Size

    *Flavour Inside

    Reset options

Your basket is kept. Review fulfilment details and the final total before paying.

iCake Melbourne – SpongeBob-Inspired Underwater World Cake

Dive into a world of fun and color with iCake Melbourne’s newest creation: the SpongeBob-Inspired Underwater World Cake. Perfect for kids’ birthdays, ocean-themed parties, or anyone who loves the whimsical charm of SpongeBob SquarePants, this cake brings the magic of the sea to life with vibrant blue tones, playful decorations, and intricate buttercream artistry.

The Underwater World Cake is a feast for the eyes and the palate. Crafted with premium ingredients, each layer is soft, moist, and full of flavor, ensuring a delicious experience alongside its stunning design. The cake’s bright blue buttercream base represents the clear ocean waters, while colorful piped details illustrate a lively underwater scene filled with flowers, coral shapes, and ocean-inspired patterns, reminiscent of SpongeBob’s whimsical Bikini Bottom home.

Every detail of the SpongeBob-Inspired Underwater World Cake is meticulously handcrafted by iCake Melbourne’s expert pastry chefs. From the playful flowers to the swirls of ocean currents, each element is designed to captivate and delight. Small edible pearls add a touch of elegance and mimic the sparkle of sunlight through water, creating an immersive underwater effect. This cake not only serves as a centerpiece but also as a memorable part of your celebration, evoking joy and excitement in every guest.

Available in multiple sizes, the Underwater World Cake is perfect for intimate family celebrations or larger gatherings. The vibrant blue theme pairs beautifully with other ocean-inspired decorations, making it a show-stopping addition to your party. Personalized messages can also be added to the cake to make it uniquely yours, allowing you to celebrate your loved ones in style.

iCake Melbourne believes that a cake should be both delicious and visually enchanting. The SpongeBob-Inspired Underwater World Cake embodies this philosophy by combining playful creativity with high-quality craftsmanship. Its bright blue palette, whimsical designs, and attention to detail ensure a cake that is as delightful to look at as it is to eat.

Order your SpongeBob-Inspired Underwater World Cake today from iCake Melbourne and bring the magic of the ocean to your next celebration. Perfect for SpongeBob fans of all ages, this cake turns any party into a vibrant underwater adventure. Experience the perfect combination of flavor, fun, and artistic expression in every slice.

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Cake ordering guides

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Before you order

Yes, we have ready-to-go cakes available in our stores daily. For customized cakes, availability depends on order volume. We'll do our best to assist you in finding the perfect product.
Yes, we offer cake delivery services within a specific radius of our shop. Delivery charges may apply based on the distance. Please use the delivery calculator on the website or contact us for more details.
If iCake cannot fulfil a confirmed order because the design is not safely or technically achievable, production capacity is full, required materials are unavailable and no suitable alternative is accepted, or for another reason within iCake's control, iCake will cancel the affected order and provide a full refund. For new orders placed after this policy update was published on 28 October 2026, customer-related cancellation fees depend on the notice before the originally confirmed pickup time or the start of the delivery window, in Melbourne local time: 48 hours or less, 60%; more than 48 hours up to 96 hours, 30%; more than 96 hours up to 7 days (168 hours), 20%; more than 7 days, a 10% processing fee. No additional processing fee is added. Deductions are limited to reasonable cancellation costs and losses, allowing for costs saved and any replacement booking or resale. Earlier orders retain their agreed terms; Today's Special retains its separate change-of-mind terms. These fees do not apply to remedies required under the Australian Consumer Law. See our Delivery & Refund Policy (https://www.icakemelbourne.com.au/delivery-refund-policy/) for the calculation, delivery-charge treatment and how to cancel.
While we take care with allergens, our facility is not entirely nut-free. Customers with severe nut allergies should exercise caution when ordering.
Please place a customised cake order at least 48 hours before your requested pickup or delivery time, measured in Melbourne local time. Earlier ordering is recommended for complex designs, large orders or special materials. Every customised order remains subject to iCake's production capacity and confirmation. Ready-to-go daily cakes remain subject to current store stock.
View all FAQs · Delivery & refund policy

What Our Customers Say

Excellent4.6★★★★☆ Based on 1155 reviews from review us onkcf12377kcf12377 ★★★★★ Excellent store, got a birthday cake from here. Lots of variety and great value. Chi was a great help in helping me select an optionArianne QuijanoArianne Quijano ★★★★★ Really happy with our Jellycat cake from iCake. It’s super cute and yummy!!! Big thank you to Chi as well, who was so lovely and kind to us throughout the whole process. We really appreciated the great service and would definitely recommend iCake! 🩷Chuihan MengChuihan Meng ★★★★★ Today is my birthday and Chi helped me in chosing cake for me and my friend! I will come next time!anh trương hoànganh trương hoàng ★★★★★ What a lovely visit! The green tea crepe one of the best I've had, so tasty. A big thank you to Millies. She was warm and friendly. Amazing desserts and even better service.Rosá KimberlyRosá Kimberly ★★★★★ Chi was lovely in assisting me in finding a super cute and delicious cake for a birthday! Would recommend.Anita RanjitkarAnita Ranjitkar ★★★★★ Amelia she is nice girl who give us best service. Thank youjs_loader