The clients I had built this ipe deck for a few years back, called up and told me their hot tub had finally died. They decided that instead of getting a new one, they wanted the space converted into a raised planter bed. Here is the hot tub shortly after I began cutting it up to remove it.
After removing the old hot tub and putting in some drainage lines, I framed up a new floor and side walls. I put down PVC sheets to line the bottom and then drilled holes through it to allow for water to flow through to the drainage lines.
After lining the interior with filter fabric, I applied ipe deck boards to the exterior and interior walls so that they would line up exactly with the existing decking. Over time, they will weather to the same silver color as the rest of the decking.
The last step for me was adding ipe deck boards across the top of the walls. After that, the landscapers brought in topsoil.
A few months later I was back on a rainy day and got this finished shot of the vegetable garden going strong.