If you ride (on) a wave of something, you benefit from a period of success and/or popularity.
The candidate is riding on a wave of popularity and is expected to win the election.
British athletes rode a wave of patriotism during the London Olympics, winning more medals than the country ever had before.
To take someone for a ride. If you take someone for a ride, you trick or cheat them.
I trusted Ben, but he took me for a ride. He sold me a ticket to the Kanye West show, but in fact it wasn't a real ticket: it was just a photocopy.
'Bodysurfing' is surfing without any kind of surfboard, using only your body as a board. Some bodysurfers wear fins to help them ride waves more quickly and safely.