it's been about 10 years or so since i last visited Borinquen (native
Taino name for P.R.), but a must-see destination for any beekeeper should
bee the botanical gardens at the Mayaguez (west coast) campus of the
Univ. of P.R....the college's apiary was located there then, don't know
about now, but try to contact the extension apiculturist,  Daniel
Pesante, at UPR animal science dept., pob 5000,mayaguez,PR 00681,phone
(809)2653854.
the botanical gardens in San Juan (north coast) were also impressive but
don't recall any apiary there...can try to contact the apiary inspector,
Nilda Perez, at the PR dept. of agriculture, san juan, PR 10163, phone
(809)7244627.
hopefully this info is up to date, got it from bee culture's who's who in
beekeeping site...they also give a local association contact, gregorio
rivera, pob 471, Lares, PR 00669, in the central highlands.