Yep.
For those who don't know, you wax the TOP of the surfboard, where your feet are. Never wax the bottom of a surfboard. The wax comes in a variety of different hardnesses, depending on how cold the water is. You build up a layer of "wax bumps" on top of the board, and leave them there. You do not buff it smooth. Plenty of videos on the subject.
You can clean off the old wax, by letting the board sit out in the sun for a few minutes, so the wax gets soft, and then scraping it off with a credit card. But first, you have to find someone who has a credit card, because surfers are usually as broke as pool players.