At times in this big universe

you can feel rather small.

But there are worlds of every size to see,

worlds for each and all.

Dive down to the reef and explore the many worlds that exist underwater, from dolphins that soar up above to nudibranchs that skim the ocean floor. Swim through the big worlds and tiny worlds of the reef, observe the beauty of the colourful coral, and delight in the busy lives of all who live above, below and within.

From one of the brightest Australian author-illustrators comes a stunning ode to natural treasures and the interconnectedness of our worlds.