The Supski is an interesting hybrid between stand-up paddle-boards -- also known as SUPs -- and skis. There have already been stand-up paddleboards introduced that can be sailed, paddled or rowed like kayaks, but this particular innovation lets you employ the kinds of upper-body techniques associated with cross-country skiing.
This contraption can be installed on existing boards and can work in conjunction with regular modular paddles, which makes it a great option for people who can't afford to shell out on a whole new contraption. Users can easily push back the poles simultaneously or indeed alternate between them, a movement reminiscent of skiing.
The Supski is perfect for people who enjoy stand-up paddleboarding and are looking for a fun upper-body workout. Whilst many hybrid contraptions end up being neither here nor there, the Supski perfectly brings together two different activities.