Sail
You hoist your towel above your table, drop into the water and sail away. You turned the towel into an actual sail and you're balancing on top of the table, which is now a boat.
はん
ほ
None
As you sail off into the ocean you hear a familiar voice shout out, "Ahoy!" Han (はん) Solo calls. He's also got a towel sail, but it's on the Millennium Falcon, which is half-submerged in the water.
An update is needed before you can continue but you have more than one WaniKani tab open.
Finish up what ever you are doing on the other tab(s), then close them to continue.
The update will complete automatically once the other tab(s) are closed.