Well, blow me down!
Popeye takes a trip to "Goonland" to locate his father, Poopdeck Pappy, who would return in a few more shorts down the line. Now that I think of it, maybe this Fleischer brothers short was part of the inspiration for Robert Altman's musical adaptation in 1980, with Robin Williams, Ray Walston as Pappy, and Shelly Duvall as Olive.
The thing I find most interesting is that, as Popeye sings at the start, Poopdeck had been missing for 40 years, which means Popeye himself isn't exactly a young man, quite a contradiction from prior and later adventures. The fact that Poopdeck wasn't exactly willing to go home was revisited when King Features revamped this story nearly 25 years later!