Arriving by car, there are several places to park on the edge of the historic centre – the best is Estacionamiento Lincoln Center Plaza (Mon–Fri 6am–7pm, Sat 7am–8pm; $1.50 first hr, $0.75 thereafter) at the end of PR-1, on the north side of town.
By público you’ll be dropped at the Terminal Francisco Pereira, two blocks northeast of central Plaza Palmer. The tourist office (daily 9am–5pm; t 787/653-8833 ext 2908, w gotocaguas.com) on the northwest corner of Plaza Palmer, has only basic information on the city but helpful English-speaking staff.
All the museums in Caguas open Tuesday to Saturday 9am to noon and 1 to 5pm, and are free. With the exception of the art gallery, you’ll need to read Spanish to get the most out of them, though you might find helpful English-speaking guides on hand willing to show you around.