First, we should make sure the owner is not trying to body drag back to it. If he is, we can observe and keep an eye, but we should give him room to get back to his board by himself. If he is not near the board and that board needs rescue, then you should take action.
1- approach the board on the upwind side and slowly. Grab the board and place it on your lap. The fins should be down so you can easily stay on your lap.
Then you need to send the kite to the water start movement, and you should use both hands for that. Once the kite starts to pull you can take your front hand off the bar because you will only need the backhand to pull the kite back. The front hand should grab the rail of the board and make the board rotate around you to go to your back.
Once the board is on the transporting position is is comfortable to carry it. You can even drop it and hold on the foot strap.
Then you can either get the board to the beach or take it to the person. If you decide to take the board back to the rider try to leave the board in front of the person downwind of him instead of getting it super close. It’s more disturbing for a beginner to get another kite close than doing a small body drag downwind to get to the board.
For this skill, the handle is also not a great help as it stands a bit in the way of where you want to hold. Using the handle for transport is not the easiest either. But we don’t know what board we will have to get. If it has a handle, I don’t recommend using it for transport. The wind force on the board will make the board either tip down or up making it hard to ride with the board.
If you never tried to rescue a kiteboard. You should consider practicing it. In the worst case scenario, you body drag with the board.
It’s also a required skill if you want to become a kitesurf instructor.
It’s always a nice thing to do for others and to show the kitesurf spirit of helping and caring.
I hope that with this tutorial video and posts you feel more comfortable to go and rescue the boards when you see them laying around in the water instead of passing by and letting them get lost in the ocean. I’m sure the owners will be super happy with your actions and will thank you later over a beer when discussing the amazing kite day you both had.