Underwater Ocean Background for Google Slides with Watercolor Jellyfish, Coral, a Seahorse and Sun Rays

Free underwater ocean background for Google Slides with watercolor jellyfish, coral, a seahorse and sun rays. HD 16:9.

Created by Elena Gidura · November 6, 2026

This underwater ocean background for Google Slides is painted in soft watercolor: pink and lavender jellyfish drift above a sandy floor with coral, seaweed, a seahorse and a pearl shell. Sunbeams fall through clear turquoise water. The middle stays open, so put your title and text there. Gentle and playful for young audiences.

Works well for

  • Marine biology, ocean and sea life lessons
  • Under the sea birthday and baby shower slides
  • Mermaid and ocean-themed class presentations
  • Ocean conservation and coral reef awareness talks
  • Summer camp, aquarium and kids event slides

Specs

  • 1920 x 1080 px · 16:9 widescreen
  • JPG, high quality, no compression artefacts
  • PowerPoint · Google Slides · Keynote · Canva
  • No watermark · no sign-up
  • Free for personal and commercial use

You can use this Dreamy Watercolor Jellyfish and Coral Reef Underwater Background for Ocean and Marine Life Slides as a Wallpaper or use it as a background for slides.

Browse all our free school and kids PPT backgrounds, or see how to set a background in PowerPoint and Google Slides.

Download free HD background

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