Oh, okay
There was an early episode where they found an underground pool of fresh water. Between that and the constant heavy rainstorms the island gets, there should be plenty of water.
The pilot jokes that the Howells have what they consider to be just enough clothes for three hours.
As has been pointed out, at the end of the glue episode, the entire boat breaks apart.
One episode explains that “the locals” have known for a long time that, for some reason, the tides tend to take people to the island. Also, there’s a convenient excuse in most cases; for example, when the South American dictator appears, he does tell people about them, but nobody believes him and they stage a counter-coup to get him out. A surfer manages to make it back to the mainland? Oh,wait, at the last minute, he hit his head on a rock and has amnesia.
On the other hand, you have a point; for example, when they made the movie and it ended up winning the Palm d’Or at Cannes, you would think that somebody would have recognized either Ginger or the Howells. In the episode with whichever of the Gabors was on, she does say that she met them, but the location is in her diary, “in plain English…translated from Hungarian.” In the one with the radio show contestant, nobody other than Gilligan saw, or heard, a helicopter approach the island. Also, the lagoon shouldn’t be that deep; why don’t they try finding the raft they tried leaving on that sank when everybody but Gilligan had a bag of gold hidden on it?
It’s probably in front of every episode as it is easier than trying to single out the ones that might need it. The episode with the Japanese sailor who thinks WWII is still going on comes to mind.

It’s probably in front of every episode as it is easier than trying to single out the ones that might need it. The episode with the Japanese sailor who thinks WWII is still going on comes to mind.
Agreed. That one likely hasn’t aged well (not only because of the stereotype, but because the Japanese sailor was played by an Italian-American actor), as well as the various episodes depicting native tribes and headhunters.

She had (or, at least, believed that she had) a serious film career, prior to playing Ginger; she studied under Lee Strasburg, and was a member of the Actors Studio. The show did probably typecast her, not only as a comic actor (and a TV actor, rather than in film, which was a major distinction back then), but for playing a glamorous sexpot character (clearly based on Marilyn Monroe).
I happened to catch an old episode of Kojak a few weeks ago, with Tina Louise as a junkie prostitute. Glamorous is not the word I would use to describe her in that.

I happened to catch an old episode of Kojak a few weeks ago, with Tina Louise as a junkie prostitute. Glamorous is not the word I would use to describe her in that.
And, in fact, her Wikipedia article cites that guest appearance as one that she seems to have taken in an effort to escape the typecasting:
Louise attempted to shed her comedic image by playing darker roles, such as a heroin addict in a 1974 episode of Kojak and as a cruel corrections officer in the 1976 television movie Nightmare in Badham County .
Don’t forget her role as a cult member/sex worker in the made for tv sequel to Rosemary’s Baby. I’m shocked that didn’t catapult her into superstardom.
Do y’all feel like we have too much free time on our hands?
I personally have wasted way too much time thinking about this.

Do y’all feel like we have too much free time on our hands?
I’m working from home as we speak. So, definitely no!
I’m gonna take that and run with it.
Poor Maryanne. She was so forgotten.
Poor Maryanne. She was so forgotten.
Shut-up @discobot and let me post.

Do y’all feel like we have too much free time on our hands?
Nope, not in the slightest. https://www.youtube.com/watch?v=5XcKBmdfpWs
Is @discobot banned?
Hi! To find out what I can do, say @discobot display help
.
Oh, there you are. You little jerk.
@discobot display help. how do you feel about Maryanne?
I hate you

Do y’all feel like we have too much free time on our hands?
I could have finished a Ph.D program with the time I spent thinking about Mary Ann and Barbara Eden as a teen. This is nothing…
Weirdly, there was a Japanese soldier still hiding out until several years after the end of Gilligan’s Island was over. But he was actually Japanese, not Italian-American
In the second pilot (the one that was aired), the radio newscaster reporting the disappearance of the Minnow said Ginger was still wearing the dress from her nightclub act when she reportedly got on the boat. She must have been snorting coke if she went straight from an all-night gig to a three-hour tour at nine or ten in the morning.
Tina Louise was in an episode of Married … with Children back in the '90s. She still looked pretty good at the time.
As for the other clothes, things were washing up on the island all the time. Sometimes they even fell out of the sky, like Gilligan’s French Vanilla ice cream.
I hate those stupid Woke disclaimers and mute them whenever they come on. I can make up my own mind as to what is or isn’t offensive, thank you very much!
Hmmm?
Miss Beck?
I knew I’d get blamed for this
I’m innocent, I tell you. Innocent!