"Surfin' Safari"

I recently listened to the first three Beach Boys albums (and Shut Down Volume 2 because it's paired with Surfer Girl on the CD re-issue), and I noticed a bunch of minor points to note.

In "Surfin' Safari," the line "From Hawaii to the shores of Peru" (describing how surfing is "gettin' bigger ev'ry day") is a merism.

"Surfin' Safari"

Earlier this month (the 6th) I figured out the bass part for "Surfin' Safari."  Like the other parts I know from the Surfin' Safari album so far, it's actually pretty simple.  Over the last few weeks, I notated it piecemeal.  Of course, there's the usual disclaimer that I might have something wrong.  I extended the bar lines past the staff in a few places to distinguish some sections (the guitar solo, for example).

As with "County Fair" (the next track on Surfin' Safari), the bass part resembles waves when it's notated.  Because "Surfin' Safari" is about surfing (which involves waves), I'm wondering if this is something of a musical joke.