Regrettably those six palms are no longer around (could not find them), but all is not lost, there is an area to the west of the Queen's Park Savannah with lots of these palms.
Also, by the two decomissioned sugar factories in central and south Trinidad there are access roads lined with old Royal Palms.... problem is no one looks after the trees, quite a few have died. These palms were planted in the 1930's when Tate and Lyle manufactured sugar in Trinidad I guess the ones growing in the savannah were older.