If you feel the need for sand and speed, then head inland for some sand boarding and sand tobogganing fun.
There are a number of places to experience this including The Desert behind Tangalooma Resort. All you need is a piece of waxed board, even a big piece of cardboard can be fun.
Hike up one of the giant dunes, lay down on your stomach and fold up the front of your board and push off the edge for a huge adrenaline rush... you can reach speeds of up to 60km per hour!
Remember to take plenty of water, sunscreen, a hat, and a sense of adventure with you!
Once you've had your fill of sun and sand, head down to the beach and snorkel around the Tangalooma Wrecks.