Tandem Bike Wanted

When we arrive next month, I am looking for a used tandem bike ( two or three wheel type) for local use in town.  We can ride to the bakery, post office and cafe in the AM.

I am not sure where to locate such an item in PR or even if such an item is possible ( do they have yard/tag sales in PR?).

The other option may be an ele golf cart, but I like the idea of a regular pedal bike.

Ponce has this bicycle phenomenon going and I have seen tandem bikes and all sorts of others. Next time I cross paths with an owner I will inquire and post it here.