A rocket hot tub must be one of the best natural building projects ever. After reading Becky Bee’s book: you can make the best hot tub ever we decided to make one ourselves. It is fun easy cheap and the results can be amazing both in terms of aesthetics as well as the relax factor once you completely relax and watch the stars. On top of that after heating up the water you can have a barbecue on the embers. Here we demonstrate how we transformed an overgrown area in the garden into this rocket barbecue hot tub.