Banana plantation on a Saturday? Working?

Hello... we will be visiting Limon and hopefully doing a tour while on our Coral Princess cruise in October. On many of the tours by tour operators, it lists a banana plantation tour stop, which sounds fascinating, to see how it works.

But is the plant open on Saturdays? If yes, what goes on there that day if the workers are not there?

If not, what do you do there instead, or do you not visit?

Thanks!

Bump.