Obviously, you’ll need a paddleboard, and whether you opt for one with a planing or displacement hull or a solid or inflatable SUP depends on how you plan on using it.
Planing hull SUPs are best for those just getting into the sport as they are good all-rounders and easy to manoeuvre – like a mountain bike of the water. SUPs with displacements hulls are more technical and better for longer distances.
When it comes to choosing between a solid or inflatable board, I’d say from a practical perspective, the biggest consideration is space and how you’d transport a solid paddleboard, but from a performance point of view, they have the edge.
You’ll also need a paddle, and for safety, a lifejacket and a leash are essential. If I’m planning on a trip downriver, I also find a drysack invaluable as it means I can take my stuff with me on my trip.