Puerto Rico Highway 188Puerto Rico Highway 188 is a north–south highway that travels from Canóvanas, Puerto Rico to Loíza. It begins at its intersection with PR-3 and PR-9188 in Canóvanas and ends at its junction with PR-187 near downtown Loíza.Related routePuerto Rico Highway 9188 is a connector that branches off from its intersection with PR-3 and PR-188, and ends at PR-66.